diff --git a/reproductions/2021-01-ousd/package.json b/reproductions/2021-01-ousd/package.json
index d1b32aa..16d307b 100644
--- a/reproductions/2021-01-ousd/package.json
+++ b/reproductions/2021-01-ousd/package.json
@@ -11,7 +11,7 @@
   "dependencies": {
     "@nomiclabs/hardhat-ethers": "^2.0.1",
     "ethers": "^5.0.24",
-    "hardhat": "^2.0.6",
+    "hardhat": "^2.4.3",
     "hardhat-deploy": "^0.7.0-beta.39",
     "hardhat-deploy-ethers": "^0.3.0-beta.7"
   }
diff --git a/reproductions/2021-01-ousd/yarn.lock b/reproductions/2021-01-ousd/yarn.lock
index f3c714d..b915f07 100644
--- a/reproductions/2021-01-ousd/yarn.lock
+++ b/reproductions/2021-01-ousd/yarn.lock
@@ -2,6 +2,76 @@
 # yarn lockfile v1
 
 
+"@ethereumjs/block@^3.4.0":
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/block/-/block-3.4.0.tgz#4747b0c06220ee10cbdfe1cbde8cbb0677b1b074"
+  integrity sha512-umKAoTX32yXzErpIksPHodFc/5y8bmZMnOl6hWy5Vd8xId4+HKFUOyEiN16Y97zMwFRysRpcrR6wBejfqc6Bmg==
+  dependencies:
+    "@ethereumjs/common" "^2.4.0"
+    "@ethereumjs/tx" "^3.3.0"
+    ethereumjs-util "^7.1.0"
+    merkle-patricia-tree "^4.2.0"
+
+"@ethereumjs/blockchain@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/blockchain/-/blockchain-5.4.0.tgz#28d712627d3442b2bb1f50dd5acba7cde1021993"
+  integrity sha512-wAuKLaew6PL52kH8YPXO7PbjjKV12jivRSyHQehkESw4slSLLfYA6Jv7n5YxyT2ajD7KNMPVh7oyF/MU6HcOvg==
+  dependencies:
+    "@ethereumjs/block" "^3.4.0"
+    "@ethereumjs/common" "^2.4.0"
+    "@ethereumjs/ethash" "^1.0.0"
+    debug "^2.2.0"
+    ethereumjs-util "^7.1.0"
+    level-mem "^5.0.1"
+    lru-cache "^5.1.1"
+    rlp "^2.2.4"
+    semaphore-async-await "^1.5.1"
+
+"@ethereumjs/common@^2.4.0":
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/common/-/common-2.4.0.tgz#2d67f6e6ba22246c5c89104e6b9a119fb3039766"
+  integrity sha512-UdkhFWzWcJCZVsj1O/H8/oqj/0RVYjLc1OhPjBrQdALAkQHpCp8xXI4WLnuGTADqTdJZww0NtgwG+TRPkXt27w==
+  dependencies:
+    crc-32 "^1.2.0"
+    ethereumjs-util "^7.1.0"
+
+"@ethereumjs/ethash@^1.0.0":
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/ethash/-/ethash-1.0.0.tgz#4e77f85b37be1ade5393e8719bdabac3e796ddaa"
+  integrity sha512-iIqnGG6NMKesyOxv2YctB2guOVX18qMAWlj3QlZyrc+GqfzLqoihti+cVNQnyNxr7eYuPdqwLQOFuPe6g/uKjw==
+  dependencies:
+    "@types/levelup" "^4.3.0"
+    buffer-xor "^2.0.1"
+    ethereumjs-util "^7.0.7"
+    miller-rabin "^4.0.0"
+
+"@ethereumjs/tx@^3.3.0":
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.3.0.tgz#14ed1b7fa0f28e1cd61e3ecbdab824205f6a4378"
+  integrity sha512-yTwEj2lVzSMgE6Hjw9Oa1DZks/nKTWM8Wn4ykDNapBPua2f4nXO3qKnni86O6lgDj5fVNRqbDsD0yy7/XNGDEA==
+  dependencies:
+    "@ethereumjs/common" "^2.4.0"
+    ethereumjs-util "^7.1.0"
+
+"@ethereumjs/vm@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/vm/-/vm-5.5.0.tgz#d389c5792320ef28c51366a643b8ab9d64e10a31"
+  integrity sha512-h6Kr6WqKUP8nVuEzCWPWEPrC63v7HFwt3gRuK7CJiyg9S0iWSBKUA/YVD4YgaSVACuxUfWaOBbwV5uGVupm5PQ==
+  dependencies:
+    "@ethereumjs/block" "^3.4.0"
+    "@ethereumjs/blockchain" "^5.4.0"
+    "@ethereumjs/common" "^2.4.0"
+    "@ethereumjs/tx" "^3.3.0"
+    async-eventemitter "^0.2.4"
+    core-js-pure "^3.0.1"
+    debug "^2.2.0"
+    ethereumjs-util "^7.1.0"
+    functional-red-black-tree "^1.0.1"
+    mcl-wasm "^0.7.1"
+    merkle-patricia-tree "^4.2.0"
+    rustbn.js "~0.2.0"
+    util.promisify "^1.0.1"
+
 "@ethersproject/abi@5.0.9", "@ethersproject/abi@^5.0.2", "@ethersproject/abi@^5.0.5":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.0.9.tgz#738c1c557e56d8f395a5a27caef9b0449bc85a10"
@@ -17,6 +87,21 @@
     "@ethersproject/properties" "^5.0.3"
     "@ethersproject/strings" "^5.0.4"
 
+"@ethersproject/abi@^5.1.2":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.4.0.tgz#a6d63bdb3672f738398846d4279fa6b6c9818242"
+  integrity sha512-9gU2H+/yK1j2eVMdzm6xvHSnMxk8waIHQGYCZg5uvAyH0rsAzxkModzBSpbAkAuhKFEovC2S9hM4nPuLym8IZw==
+  dependencies:
+    "@ethersproject/address" "^5.4.0"
+    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/constants" "^5.4.0"
+    "@ethersproject/hash" "^5.4.0"
+    "@ethersproject/keccak256" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+    "@ethersproject/strings" "^5.4.0"
+
 "@ethersproject/abstract-provider@5.0.7", "@ethersproject/abstract-provider@^5.0.4":
   version "5.0.7"
   resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.0.7.tgz#04ee3bfe43323384e7fecf6c774975b8dec4bdc9"
@@ -30,6 +115,19 @@
     "@ethersproject/transactions" "^5.0.5"
     "@ethersproject/web" "^5.0.6"
 
+"@ethersproject/abstract-provider@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.4.0.tgz#415331031b0f678388971e1987305244edc04e1d"
+  integrity sha512-vPBR7HKUBY0lpdllIn7tLIzNN7DrVnhCLKSzY0l8WAwxz686m/aL7ASDzrVxV93GJtIub6N2t4dfZ29CkPOxgA==
+  dependencies:
+    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/networks" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+    "@ethersproject/transactions" "^5.4.0"
+    "@ethersproject/web" "^5.4.0"
+
 "@ethersproject/abstract-signer@5.0.9", "@ethersproject/abstract-signer@^5.0.2", "@ethersproject/abstract-signer@^5.0.4", "@ethersproject/abstract-signer@^5.0.6":
   version "5.0.9"
   resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.0.9.tgz#238ddc06031aeb9dfceee2add965292d7dd1acbf"
@@ -41,6 +139,17 @@
     "@ethersproject/logger" "^5.0.5"
     "@ethersproject/properties" "^5.0.3"
 
+"@ethersproject/abstract-signer@^5.4.0":
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.4.1.tgz#e4e9abcf4dd4f1ba0db7dff9746a5f78f355ea81"
+  integrity sha512-SkkFL5HVq1k4/25dM+NWP9MILgohJCgGv5xT5AcRruGz4ILpfHeBtO/y6j+Z3UN/PAjDeb4P7E51Yh8wcGNLGA==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.4.0"
+    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+
 "@ethersproject/address@5.0.8", "@ethersproject/address@^5.0.2", "@ethersproject/address@^5.0.4", "@ethersproject/address@^5.0.5":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.0.8.tgz#0c551659144a5a7643c6bea337149d410825298f"
@@ -52,6 +161,17 @@
     "@ethersproject/logger" "^5.0.5"
     "@ethersproject/rlp" "^5.0.3"
 
+"@ethersproject/address@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.4.0.tgz#ba2d00a0f8c4c0854933b963b9a3a9f6eb4a37a3"
+  integrity sha512-SD0VgOEkcACEG/C6xavlU1Hy3m5DGSXW3CUHkaaEHbAPPsgi0coP5oNPsxau8eTlZOk/bpa/hKeCNoK5IzVI2Q==
+  dependencies:
+    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/keccak256" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/rlp" "^5.4.0"
+
 "@ethersproject/base64@5.0.6", "@ethersproject/base64@^5.0.3":
   version "5.0.6"
   resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.0.6.tgz#26311ebf29ea3d0b9c300ccf3e1fdc44b7481516"
@@ -59,6 +179,13 @@
   dependencies:
     "@ethersproject/bytes" "^5.0.4"
 
+"@ethersproject/base64@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.4.0.tgz#7252bf65295954c9048c7ca5f43e5c86441b2a9a"
+  integrity sha512-CjQw6E17QDSSC5jiM9YpF7N1aSCHmYGMt9bWD8PWv6YPMxjsys2/Q8xLrROKI3IWJ7sFfZ8B3flKDTM5wlWuZQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.4.0"
+
 "@ethersproject/basex@5.0.6", "@ethersproject/basex@^5.0.3":
   version "5.0.6"
   resolved "https://registry.yarnpkg.com/@ethersproject/basex/-/basex-5.0.6.tgz#ab95c32e48288a3d868726463506641cb1e9fb6b"
@@ -76,6 +203,15 @@
     "@ethersproject/logger" "^5.0.5"
     bn.js "^4.4.0"
 
+"@ethersproject/bignumber@^5.4.0":
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bignumber/-/bignumber-5.4.1.tgz#64399d3b9ae80aa83d483e550ba57ea062c1042d"
+  integrity sha512-fJhdxqoQNuDOk6epfM7yD6J8Pol4NUCy1vkaGAkuujZm0+lNow//MKu1hLhRiYV4BsOHyBv5/lsTjF+7hWwhJg==
+  dependencies:
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    bn.js "^4.11.9"
+
 "@ethersproject/bytes@5.0.8", "@ethersproject/bytes@^5.0.2", "@ethersproject/bytes@^5.0.4", "@ethersproject/bytes@^5.0.8":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.0.8.tgz#cf1246a6a386086e590063a4602b1ffb6cc43db1"
@@ -83,6 +219,13 @@
   dependencies:
     "@ethersproject/logger" "^5.0.5"
 
+"@ethersproject/bytes@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.4.0.tgz#56fa32ce3bf67153756dbaefda921d1d4774404e"
+  integrity sha512-H60ceqgTHbhzOj4uRc/83SCN9d+BSUnOkrr2intevqdtEMO1JFVZ1XL84OEZV+QjV36OaZYxtnt4lGmxcGsPfA==
+  dependencies:
+    "@ethersproject/logger" "^5.4.0"
+
 "@ethersproject/constants@5.0.7", "@ethersproject/constants@^5.0.4":
   version "5.0.7"
   resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.0.7.tgz#44ff979e5781b17c8c6901266896c3ee745f4e7e"
@@ -90,6 +233,13 @@
   dependencies:
     "@ethersproject/bignumber" "^5.0.7"
 
+"@ethersproject/constants@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.4.0.tgz#ee0bdcb30bf1b532d2353c977bf2ef1ee117958a"
+  integrity sha512-tzjn6S7sj9+DIIeKTJLjK9WGN2Tj0P++Z8ONEIlZjyoTkBuODN+0VfhAyYksKi43l1Sx9tX2VlFfzjfmr5Wl3Q==
+  dependencies:
+    "@ethersproject/bignumber" "^5.4.0"
+
 "@ethersproject/contracts@5.0.8", "@ethersproject/contracts@^5.0.2":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/contracts/-/contracts-5.0.8.tgz#71d3ba16853a1555be2e161a6741df186f81c73b"
@@ -119,6 +269,20 @@
     "@ethersproject/properties" "^5.0.4"
     "@ethersproject/strings" "^5.0.4"
 
+"@ethersproject/hash@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/hash/-/hash-5.4.0.tgz#d18a8e927e828e22860a011f39e429d388344ae0"
+  integrity sha512-xymAM9tmikKgbktOCjW60Z5sdouiIIurkZUr9oW5NOex5uwxrbsYG09kb5bMcNjlVeJD3yPivTNzViIs1GCbqA==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.4.0"
+    "@ethersproject/address" "^5.4.0"
+    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/keccak256" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+    "@ethersproject/strings" "^5.4.0"
+
 "@ethersproject/hdnode@5.0.7", "@ethersproject/hdnode@^5.0.4":
   version "5.0.7"
   resolved "https://registry.yarnpkg.com/@ethersproject/hdnode/-/hdnode-5.0.7.tgz#c7bce94a337ea65e37c46bab09a83e1c1a555d99"
@@ -164,11 +328,24 @@
     "@ethersproject/bytes" "^5.0.4"
     js-sha3 "0.5.7"
 
+"@ethersproject/keccak256@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/keccak256/-/keccak256-5.4.0.tgz#7143b8eea4976080241d2bd92e3b1f1bf7025318"
+  integrity sha512-FBI1plWet+dPUvAzPAeHzRKiPpETQzqSUWR1wXJGHVWi4i8bOSrpC3NwpkPjgeXG7MnugVc1B42VbfnQikyC/A==
+  dependencies:
+    "@ethersproject/bytes" "^5.4.0"
+    js-sha3 "0.5.7"
+
 "@ethersproject/logger@5.0.8", "@ethersproject/logger@^5.0.5":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.0.8.tgz#135c1903d35c878265f3cbf2b287042c4c20d5d4"
   integrity sha512-SkJCTaVTnaZ3/ieLF5pVftxGEFX56pTH+f2Slrpv7cU0TNpUZNib84QQdukd++sWUp/S7j5t5NW+WegbXd4U/A==
 
+"@ethersproject/logger@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.4.0.tgz#f39adadf62ad610c420bcd156fd41270e91b3ca9"
+  integrity sha512-xYdWGGQ9P2cxBayt64d8LC8aPFJk6yWCawQi/4eJ4+oJdMMjEBMrIcIMZ9AxhwpPVmnBPrsB10PcXGmGAqgUEQ==
+
 "@ethersproject/networks@5.0.6", "@ethersproject/networks@^5.0.3":
   version "5.0.6"
   resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.0.6.tgz#4d6586bbebfde1c027504ebf6dfb783b29c3803a"
@@ -176,6 +353,13 @@
   dependencies:
     "@ethersproject/logger" "^5.0.5"
 
+"@ethersproject/networks@^5.4.0":
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.4.1.tgz#2ce83b8e42aa85216e5d277a7952d97b6ce8d852"
+  integrity sha512-8SvowCKz9Uf4xC5DTKI8+il8lWqOr78kmiqAVLYT9lzB8aSmJHQMD1GSuJI0CW4hMAnzocpGpZLgiMdzsNSPig==
+  dependencies:
+    "@ethersproject/logger" "^5.4.0"
+
 "@ethersproject/pbkdf2@5.0.6", "@ethersproject/pbkdf2@^5.0.3":
   version "5.0.6"
   resolved "https://registry.yarnpkg.com/@ethersproject/pbkdf2/-/pbkdf2-5.0.6.tgz#105dbfb08cd5fcf33869b42bfdc35a3ebd978cbd"
@@ -191,6 +375,13 @@
   dependencies:
     "@ethersproject/logger" "^5.0.5"
 
+"@ethersproject/properties@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/properties/-/properties-5.4.0.tgz#38ba20539b44dcc5d5f80c45ad902017dcdbefe7"
+  integrity sha512-7jczalGVRAJ+XSRvNA6D5sAwT4gavLq3OXPuV/74o3Rd2wuzSL035IMpIMgei4CYyBdialJMrTqkOnzccLHn4A==
+  dependencies:
+    "@ethersproject/logger" "^5.4.0"
+
 "@ethersproject/providers@5.0.17", "@ethersproject/providers@^5.0.5":
   version "5.0.17"
   resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.0.17.tgz#f380e7831149e24e7a1c6c9b5fb1d6dfc729d024"
@@ -232,6 +423,14 @@
     "@ethersproject/bytes" "^5.0.4"
     "@ethersproject/logger" "^5.0.5"
 
+"@ethersproject/rlp@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/rlp/-/rlp-5.4.0.tgz#de61afda5ff979454e76d3b3310a6c32ad060931"
+  integrity sha512-0I7MZKfi+T5+G8atId9QaQKHRvvasM/kqLyAH4XxBCBchAooH2EX5rL9kYZWwcm3awYV+XC7VF6nLhfeQFKVPg==
+  dependencies:
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+
 "@ethersproject/sha2@5.0.6", "@ethersproject/sha2@^5.0.3":
   version "5.0.6"
   resolved "https://registry.yarnpkg.com/@ethersproject/sha2/-/sha2-5.0.6.tgz#175116dc10b866a0a381f6316d094bcc510bee3c"
@@ -251,6 +450,18 @@
     "@ethersproject/properties" "^5.0.3"
     elliptic "6.5.3"
 
+"@ethersproject/signing-key@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/signing-key/-/signing-key-5.4.0.tgz#2f05120984e81cf89a3d5f6dec5c68ee0894fbec"
+  integrity sha512-q8POUeywx6AKg2/jX9qBYZIAmKSB4ubGXdQ88l40hmATj29JnG5pp331nAWwwxPn2Qao4JpWHNZsQN+bPiSW9A==
+  dependencies:
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+    bn.js "^4.11.9"
+    elliptic "6.5.4"
+    hash.js "1.1.7"
+
 "@ethersproject/solidity@5.0.7", "@ethersproject/solidity@^5.0.2":
   version "5.0.7"
   resolved "https://registry.yarnpkg.com/@ethersproject/solidity/-/solidity-5.0.7.tgz#72a3455f47a454db2dcf363992d42e9045dc7fce"
@@ -271,6 +482,15 @@
     "@ethersproject/constants" "^5.0.4"
     "@ethersproject/logger" "^5.0.5"
 
+"@ethersproject/strings@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/strings/-/strings-5.4.0.tgz#fb12270132dd84b02906a8d895ae7e7fa3d07d9a"
+  integrity sha512-k/9DkH5UGDhv7aReXLluFG5ExurwtIpUfnDNhQA29w896Dw3i4uDTz01Quaptbks1Uj9kI8wo9tmW73wcIEaWA==
+  dependencies:
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/constants" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+
 "@ethersproject/transactions@5.0.8", "@ethersproject/transactions@^5.0.2", "@ethersproject/transactions@^5.0.5":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.0.8.tgz#3b4d7041e13b957a9c4f131e0aea9dae7b6f5a23"
@@ -286,6 +506,21 @@
     "@ethersproject/rlp" "^5.0.3"
     "@ethersproject/signing-key" "^5.0.4"
 
+"@ethersproject/transactions@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.4.0.tgz#a159d035179334bd92f340ce0f77e83e9e1522e0"
+  integrity sha512-s3EjZZt7xa4BkLknJZ98QGoIza94rVjaEed0rzZ/jB9WrIuu/1+tjvYCWzVrystXtDswy7TPBeIepyXwSYa4WQ==
+  dependencies:
+    "@ethersproject/address" "^5.4.0"
+    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/constants" "^5.4.0"
+    "@ethersproject/keccak256" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+    "@ethersproject/rlp" "^5.4.0"
+    "@ethersproject/signing-key" "^5.4.0"
+
 "@ethersproject/units@5.0.8":
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/@ethersproject/units/-/units-5.0.8.tgz#563325b20fe1eceff7b61857711d5e2b3f38fd09"
@@ -327,6 +562,17 @@
     "@ethersproject/properties" "^5.0.3"
     "@ethersproject/strings" "^5.0.4"
 
+"@ethersproject/web@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/web/-/web-5.4.0.tgz#49fac173b96992334ed36a175538ba07a7413d1f"
+  integrity sha512-1bUusGmcoRLYgMn6c1BLk1tOKUIFuTg8j+6N8lYlbMpDesnle+i3pGSagGNvwjaiLo4Y5gBibwctpPRmjrh4Og==
+  dependencies:
+    "@ethersproject/base64" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+    "@ethersproject/strings" "^5.4.0"
+
 "@ethersproject/wordlists@5.0.7", "@ethersproject/wordlists@^5.0.4":
   version "5.0.7"
   resolved "https://registry.yarnpkg.com/@ethersproject/wordlists/-/wordlists-5.0.7.tgz#4e5ad38cfbef746b196a3290c0d41696eb7ab468"
@@ -338,27 +584,6 @@
     "@ethersproject/properties" "^5.0.3"
     "@ethersproject/strings" "^5.0.4"
 
-"@nomiclabs/ethereumjs-vm@^4.1.1":
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/@nomiclabs/ethereumjs-vm/-/ethereumjs-vm-4.2.0.tgz#a853bdb4fb032529f810f32bb767551d19d7ce57"
-  integrity sha512-+XwqoO941bILTO4KDLIUJ37U42ySxw6it7jyoi0tKv0/VUcOrWKF1TCQWMv6dBDRlxpPQd273n9o5SVlYYLRWQ==
-  dependencies:
-    async "^2.1.2"
-    async-eventemitter "^0.2.2"
-    core-js-pure "^3.0.1"
-    ethereumjs-account "^3.0.0"
-    ethereumjs-block "^2.2.2"
-    ethereumjs-blockchain "^4.0.3"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-tx "^2.1.2"
-    ethereumjs-util "^6.2.0"
-    fake-merkle-patricia-tree "^1.0.1"
-    functional-red-black-tree "^1.0.1"
-    merkle-patricia-tree "^2.3.2"
-    rustbn.js "~0.2.0"
-    safe-buffer "^5.1.1"
-    util.promisify "^1.0.0"
-
 "@nomiclabs/hardhat-ethers@^2.0.1":
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-ethers/-/hardhat-ethers-2.0.1.tgz#f86a6fa210dbe6270adffccc75e93ed60a856904"
@@ -432,18 +657,44 @@
     "@sentry/types" "5.29.2"
     tslib "^1.9.3"
 
-"@solidity-parser/parser@^0.7.1":
-  version "0.7.1"
-  resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.7.1.tgz#660210130e4237476cb55e2882064809f80f861e"
-  integrity sha512-5ma2uuwPAEX1TPl2rAPAAuGlBkKnn2oUKQvnhTFlDIB8U/KDWX77FpHtL6Rcz+OwqSCWx9IClxACgyIEJ/GhIw==
+"@solidity-parser/parser@^0.11.0":
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.11.1.tgz#fa840af64840c930f24a9c82c08d4a092a068add"
+  integrity sha512-H8BSBoKE8EubJa0ONqecA2TviT3TnHeC4NpgnAHSUiuhZoQBfPB4L2P9bs8R6AoTW10Endvh3vc+fomVMIDIYQ==
+
+"@types/abstract-leveldown@*":
+  version "5.0.2"
+  resolved "https://registry.yarnpkg.com/@types/abstract-leveldown/-/abstract-leveldown-5.0.2.tgz#ee81917fe38f770e29eec8139b6f16ee4a8b0a5f"
+  integrity sha512-+jA1XXF3jsz+Z7FcuiNqgK53hTa/luglT2TyTpKPqoYbxVY+mCPF22Rm+q3KPBrMHJwNXFrTViHszBOfU4vftQ==
 
-"@types/bn.js@^4.11.3", "@types/bn.js@^4.11.5":
+"@types/bn.js@^4.11.3":
   version "4.11.6"
   resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-4.11.6.tgz#c306c70d9358aaea33cd4eda092a742b9505967c"
   integrity sha512-pqr857jrp2kPuO9uRjZ3PwnJTjoQy+fcdxvBTvHm6dkmEL9q+hDD/2j/0ELOBPtPnS8LjCX0gI9nbl8lVkadpg==
   dependencies:
     "@types/node" "*"
 
+"@types/bn.js@^5.1.0":
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-5.1.0.tgz#32c5d271503a12653c62cf4d2b45e6eab8cebc68"
+  integrity sha512-QSSVYj7pYFN49kW77o2s9xTCwZ8F2xLbjLLSEVh8D2F4JUhZtPAGOFLTD+ffqksBx/u4cE/KImFjyhqCjn/LIA==
+  dependencies:
+    "@types/node" "*"
+
+"@types/level-errors@*":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@types/level-errors/-/level-errors-3.0.0.tgz#15c1f4915a5ef763b51651b15e90f6dc081b96a8"
+  integrity sha512-/lMtoq/Cf/2DVOm6zE6ORyOM+3ZVm/BvzEZVxUhf6bgh8ZHglXlBqxbxSlJeVp8FCbD3IVvk/VbsaNmDjrQvqQ==
+
+"@types/levelup@^4.3.0":
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/@types/levelup/-/levelup-4.3.3.tgz#4dc2b77db079b1cf855562ad52321aa4241b8ef4"
+  integrity sha512-K+OTIjJcZHVlZQN1HmU64VtrC0jC3dXWQozuEIR9zVvltIk90zaGPM2AgT+fIkChpzHhFE3YnvFLCbLtzAmexA==
+  dependencies:
+    "@types/abstract-leveldown" "*"
+    "@types/level-errors" "*"
+    "@types/node" "*"
+
 "@types/lru-cache@^5.1.0":
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/@types/lru-cache/-/lru-cache-5.1.0.tgz#57f228f2b80c046b4a1bd5cac031f81f207f4f03"
@@ -480,25 +731,26 @@ abort-controller@^3.0.0:
   dependencies:
     event-target-shim "^5.0.0"
 
-abstract-leveldown@^5.0.0, abstract-leveldown@~5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-5.0.0.tgz#f7128e1f86ccabf7d2893077ce5d06d798e386c6"
-  integrity sha512-5mU5P1gXtsMIXg65/rsYGsi93+MlogXZ9FA8JnwKurHQg64bfXwGYVdVdijNTVNOlAsuIiOwHdvFFD5JqCJQ7A==
-  dependencies:
-    xtend "~4.0.0"
-
-abstract-leveldown@~2.6.0:
-  version "2.6.3"
-  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.6.3.tgz#1c5e8c6a5ef965ae8c35dfb3a8770c476b82c4b8"
-  integrity sha512-2++wDf/DYqkPR3o5tbfdhF96EfMApo1GpPfzOsR/ZYXdkSmELlvOOEAl9iKkRsktMPHdGjO4rtkBpf2I7TiTeA==
+abstract-leveldown@^6.2.1:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-6.3.0.tgz#d25221d1e6612f820c35963ba4bd739928f6026a"
+  integrity sha512-TU5nlYgta8YrBMNpc9FwQzRbiXsj49gsALsXadbGHt9CROPzX5fB0rWDR5mtdpOOKa5XqRFpbj1QroPAoPzVjQ==
   dependencies:
+    buffer "^5.5.0"
+    immediate "^3.2.3"
+    level-concat-iterator "~2.0.0"
+    level-supports "~1.0.0"
     xtend "~4.0.0"
 
-abstract-leveldown@~2.7.1:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.7.2.tgz#87a44d7ebebc341d59665204834c8b7e0932cc93"
-  integrity sha512-+OVvxH2rHVEhWLdbudP6p0+dNMXu8JA1CbhP19T8paTYAcX7oJ4OVjT+ZUVpv7mITxXHqDMej+GdqXBmXkw09w==
+abstract-leveldown@~6.2.1:
+  version "6.2.3"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-6.2.3.tgz#036543d87e3710f2528e47040bc3261b77a9a8eb"
+  integrity sha512-BsLm5vFMRUrrLeCcRc+G0t2qOaTzpoJQLOubq2XM72eNpjF5UdU5o/5NvlNhx95XHcAvcl8OMXr4mlg/fRgUXQ==
   dependencies:
+    buffer "^5.5.0"
+    immediate "^3.2.3"
+    level-concat-iterator "~2.0.0"
+    level-supports "~1.0.0"
     xtend "~4.0.0"
 
 adm-zip@^0.4.16:
@@ -574,19 +826,14 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
-async-eventemitter@^0.2.2:
+async-eventemitter@^0.2.4:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/async-eventemitter/-/async-eventemitter-0.2.4.tgz#f5e7c8ca7d3e46aab9ec40a292baf686a0bafaca"
   integrity sha512-pd20BwL7Yt1zwDFy+8MX8F1+WCT8aQeKj0kQnTrH9WaeRETlRamVhD0JtRPmrV4GfOJ2F9CvdQkZeZhnh2TuHw==
   dependencies:
     async "^2.4.0"
 
-async@^1.4.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
-  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
-
-async@^2.0.1, async@^2.1.2, async@^2.4.0, async@^2.6.1:
+async@^2.4.0:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
   integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
@@ -647,6 +894,11 @@ bn.js@^4.0.0, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.8, bn.js@
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.9.tgz#26d556829458f9d1e81fc48952493d0ba3507828"
   integrity sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==
 
+bn.js@^4.11.9:
+  version "4.12.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
+  integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
+
 bn.js@^5.1.2:
   version "5.1.3"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.1.3.tgz#beca005408f642ebebea80b042b4d18d2ac0ee6b"
@@ -667,7 +919,7 @@ braces@~3.0.2:
   dependencies:
     fill-range "^7.0.1"
 
-brorand@^1.0.1:
+brorand@^1.0.1, brorand@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
   integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
@@ -722,7 +974,7 @@ buffer-xor@^2.0.1:
   dependencies:
     safe-buffer "^5.1.1"
 
-buffer@^5.2.1, buffer@^5.6.0:
+buffer@^5.2.1, buffer@^5.5.0, buffer@^5.6.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
   integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
@@ -743,6 +995,14 @@ call-bind@^1.0.0:
     function-bind "^1.1.1"
     get-intrinsic "^1.0.0"
 
+call-bind@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/call-bind/-/call-bind-1.0.2.tgz#b1d4e89e688119c3c9a903ad30abb2f6a919be3c"
+  integrity sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==
+  dependencies:
+    function-bind "^1.1.1"
+    get-intrinsic "^1.0.2"
+
 camelcase@^5.0.0:
   version "5.3.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
@@ -765,13 +1025,6 @@ chalk@^4.1.0:
     ansi-styles "^4.1.0"
     supports-color "^7.1.0"
 
-checkpoint-store@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/checkpoint-store/-/checkpoint-store-1.1.0.tgz#04e4cb516b91433893581e6d4601a78e9552ea06"
-  integrity sha1-BOTLUWuRQziTWB5tRgGnjpVS6gY=
-  dependencies:
-    functional-red-black-tree "^1.0.1"
-
 chokidar@3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.3.0.tgz#12c0714668c55800f659e262d4962a97faf554a6"
@@ -880,10 +1133,13 @@ core-js-pure@^3.0.1:
   resolved "https://registry.yarnpkg.com/core-js-pure/-/core-js-pure-3.8.1.tgz#23f84048f366fdfcf52d3fd1c68fec349177d119"
   integrity sha512-Se+LaxqXlVXGvmexKGPvnUIYC1jwXu1H6Pkyb3uBM5d8/NELMYCHs/4/roD7721NxrTLyv7e5nXd5/QLBO+10g==
 
-core-util-is@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
-  integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
+crc-32@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/crc-32/-/crc-32-1.2.0.tgz#cb2db6e29b88508e32d9dd0ec1693e7b41a18208"
+  integrity sha512-1uBwHxF+Y/4yF5G48fwnKq6QsIXheor3ZLPT80yGBV1oEUwpPojlEhQbWKVw1VwcTQyMGHK1/XMmTjmlsmTTGA==
+  dependencies:
+    exit-on-epipe "~1.0.1"
+    printj "~1.1.0"
 
 create-hash@^1.1.0, create-hash@^1.1.2, create-hash@^1.2.0:
   version "1.2.0"
@@ -929,24 +1185,24 @@ debug@=3.1.0:
   dependencies:
     ms "2.0.0"
 
+debug@^2.2.0:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
+  dependencies:
+    ms "2.0.0"
+
 decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
 
-deferred-leveldown@~1.2.1:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-1.2.2.tgz#3acd2e0b75d1669924bc0a4b642851131173e1eb"
-  integrity sha512-uukrWD2bguRtXilKt6cAWKyoXrTSMo5m7crUdLfWQmu8kIm88w3QZoUL+6nhpfKVmhHANER6Re3sKoNoZ3IKMA==
+deferred-leveldown@~5.3.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-5.3.0.tgz#27a997ad95408b61161aa69bd489b86c71b78058"
+  integrity sha512-a59VOT+oDy7vtAbLRCZwWgxu2BaCfd5Hk7wxJd48ei7I+nsg8Orlb9CLG0PMZienk9BSUKgeAqkO2+Lw+1+Ukw==
   dependencies:
-    abstract-leveldown "~2.6.0"
-
-deferred-leveldown@~4.0.0:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-4.0.2.tgz#0b0570087827bf480a23494b398f04c128c19a20"
-  integrity sha512-5fMC8ek8alH16QiV0lTCis610D1Zt1+LA4MS4d63JgS32lrCjTFDUFz2ao09/j2I4Bqb5jL4FZYwu7Jz0XO1ww==
-  dependencies:
-    abstract-leveldown "~5.0.0"
+    abstract-leveldown "~6.2.1"
     inherits "^2.0.3"
 
 define-properties@^1.1.2, define-properties@^1.1.3:
@@ -984,6 +1240,19 @@ elliptic@6.5.3, elliptic@^6.4.0, elliptic@^6.5.2:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.0"
 
+elliptic@6.5.4:
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
+  integrity sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==
+  dependencies:
+    bn.js "^4.11.9"
+    brorand "^1.1.0"
+    hash.js "^1.0.0"
+    hmac-drbg "^1.0.1"
+    inherits "^2.0.4"
+    minimalistic-assert "^1.0.1"
+    minimalistic-crypto-utils "^1.0.1"
+
 emoji-regex@^7.0.1:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
@@ -994,16 +1263,15 @@ encode-utf8@^1.0.2:
   resolved "https://registry.yarnpkg.com/encode-utf8/-/encode-utf8-1.0.3.tgz#f30fdd31da07fb596f281beb2f6b027851994cda"
   integrity sha512-ucAnuBEhUK4boH2HjVYG5Q2mQyPorvv0u/ocS+zhdw0S8AlHYY+GOFhP1Gio5z4icpP2ivFSvhtFjQi8+T9ppw==
 
-encoding-down@~5.0.0:
-  version "5.0.4"
-  resolved "https://registry.yarnpkg.com/encoding-down/-/encoding-down-5.0.4.tgz#1e477da8e9e9d0f7c8293d320044f8b2cd8e9614"
-  integrity sha512-8CIZLDcSKxgzT+zX8ZVfgNbu8Md2wq/iqa1Y7zyVR18QBEAc0Nmzuvj/N5ykSKpfGzjM8qxbaFntLPwnVoUhZw==
+encoding-down@^6.3.0:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/encoding-down/-/encoding-down-6.3.0.tgz#b1c4eb0e1728c146ecaef8e32963c549e76d082b"
+  integrity sha512-QKrV0iKR6MZVJV08QY0wp1e7vF6QbhnbQhb07bwpEyuz4uZiZgPlEGdkCROuFkUwdxlFaiPIhjyarH1ee/3vhw==
   dependencies:
-    abstract-leveldown "^5.0.0"
+    abstract-leveldown "^6.2.1"
     inherits "^2.0.3"
     level-codec "^9.0.0"
     level-errors "^2.0.0"
-    xtend "^4.0.1"
 
 enquirer@^2.3.0:
   version "2.3.6"
@@ -1024,16 +1292,17 @@ errno@~0.1.1:
   dependencies:
     prr "~1.0.1"
 
-es-abstract@^1.17.2:
-  version "1.17.7"
-  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.17.7.tgz#a4de61b2f66989fc7421676c1cb9787573ace54c"
-  integrity sha512-VBl/gnfcJ7OercKA9MVaegWsBHFjV492syMudcnQZvt/Dw8ezpcOHYZXa/J96O8vx+g4x65YKhxOwDUh63aS5g==
+es-abstract@^1.18.0-next.1:
+  version "1.18.0-next.1"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.18.0-next.1.tgz#6e3a0a4bda717e5023ab3b8e90bec36108d22c68"
+  integrity sha512-I4UGspA0wpZXWENrdA0uHbnhte683t3qT/1VFH9aX2dA5PPSf6QW5HHXf5HImaqPmjXaVeVk4RGWnaylmV7uAA==
   dependencies:
     es-to-primitive "^1.2.1"
     function-bind "^1.1.1"
     has "^1.0.3"
     has-symbols "^1.0.1"
     is-callable "^1.2.2"
+    is-negative-zero "^2.0.0"
     is-regex "^1.1.1"
     object-inspect "^1.8.0"
     object-keys "^1.1.1"
@@ -1041,23 +1310,28 @@ es-abstract@^1.17.2:
     string.prototype.trimend "^1.0.1"
     string.prototype.trimstart "^1.0.1"
 
-es-abstract@^1.18.0-next.1:
-  version "1.18.0-next.1"
-  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.18.0-next.1.tgz#6e3a0a4bda717e5023ab3b8e90bec36108d22c68"
-  integrity sha512-I4UGspA0wpZXWENrdA0uHbnhte683t3qT/1VFH9aX2dA5PPSf6QW5HHXf5HImaqPmjXaVeVk4RGWnaylmV7uAA==
+es-abstract@^1.18.0-next.2:
+  version "1.18.4"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.18.4.tgz#c6b7a1acd6bb1c8b5afeb54a53c46ad02fab346d"
+  integrity sha512-xjDAPJRxKc1uoTkdW8MEk7Fq/2bzz3YoCADYniDV7+KITCUdu9c90fj1aKI7nEZFZxRrHlDo3wtma/C6QkhlXQ==
   dependencies:
+    call-bind "^1.0.2"
     es-to-primitive "^1.2.1"
     function-bind "^1.1.1"
+    get-intrinsic "^1.1.1"
     has "^1.0.3"
-    has-symbols "^1.0.1"
-    is-callable "^1.2.2"
-    is-negative-zero "^2.0.0"
-    is-regex "^1.1.1"
-    object-inspect "^1.8.0"
+    has-symbols "^1.0.2"
+    internal-slot "^1.0.3"
+    is-callable "^1.2.3"
+    is-negative-zero "^2.0.1"
+    is-regex "^1.1.3"
+    is-string "^1.0.6"
+    object-inspect "^1.11.0"
     object-keys "^1.1.1"
-    object.assign "^4.1.1"
-    string.prototype.trimend "^1.0.1"
-    string.prototype.trimstart "^1.0.1"
+    object.assign "^4.1.2"
+    string.prototype.trimend "^1.0.4"
+    string.prototype.trimstart "^1.0.4"
+    unbox-primitive "^1.0.1"
 
 es-to-primitive@^1.2.1:
   version "1.2.1"
@@ -1090,16 +1364,6 @@ eth-sig-util@^2.5.2:
     tweetnacl "^1.0.0"
     tweetnacl-util "^0.15.0"
 
-ethashjs@~0.0.7:
-  version "0.0.8"
-  resolved "https://registry.yarnpkg.com/ethashjs/-/ethashjs-0.0.8.tgz#227442f1bdee409a548fb04136e24c874f3aa6f9"
-  integrity sha512-/MSbf/r2/Ld8o0l15AymjOTlPqpN8Cr4ByUEA9GtR4x0yAh3TdtDzEg29zMjXCNPI7u6E5fOQdj/Cf9Tc7oVNw==
-  dependencies:
-    async "^2.1.2"
-    buffer-xor "^2.0.1"
-    ethereumjs-util "^7.0.2"
-    miller-rabin "^4.0.0"
-
 ethereum-cryptography@^0.1.2, ethereum-cryptography@^0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/ethereum-cryptography/-/ethereum-cryptography-0.1.3.tgz#8d6143cfc3d74bf79bbd8edecdf29e4ae20dd191"
@@ -1137,55 +1401,6 @@ ethereumjs-abi@^0.6.8:
     bn.js "^4.11.8"
     ethereumjs-util "^6.0.0"
 
-ethereumjs-account@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ethereumjs-account/-/ethereumjs-account-3.0.0.tgz#728f060c8e0c6e87f1e987f751d3da25422570a9"
-  integrity sha512-WP6BdscjiiPkQfF9PVfMcwx/rDvfZTjFKY0Uwc09zSQr9JfIVH87dYIJu0gNhBhpmovV4yq295fdllS925fnBA==
-  dependencies:
-    ethereumjs-util "^6.0.0"
-    rlp "^2.2.1"
-    safe-buffer "^5.1.1"
-
-ethereumjs-block@^2.2.0, ethereumjs-block@^2.2.2, ethereumjs-block@~2.2.2:
-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-2.2.2.tgz#c7654be7e22df489fda206139ecd63e2e9c04965"
-  integrity sha512-2p49ifhek3h2zeg/+da6XpdFR3GlqY3BIEiqxGF8j9aSRIgkb7M1Ky+yULBKJOu8PAZxfhsYA+HxUk2aCQp3vg==
-  dependencies:
-    async "^2.0.1"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-tx "^2.1.1"
-    ethereumjs-util "^5.0.0"
-    merkle-patricia-tree "^2.1.2"
-
-ethereumjs-blockchain@^4.0.3:
-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/ethereumjs-blockchain/-/ethereumjs-blockchain-4.0.4.tgz#30f2228dc35f6dcf94423692a6902604ae34960f"
-  integrity sha512-zCxaRMUOzzjvX78DTGiKjA+4h2/sF0OYL1QuPux0DHpyq8XiNoF5GYHtb++GUxVlMsMfZV7AVyzbtgcRdIcEPQ==
-  dependencies:
-    async "^2.6.1"
-    ethashjs "~0.0.7"
-    ethereumjs-block "~2.2.2"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-util "^6.1.0"
-    flow-stoplight "^1.0.0"
-    level-mem "^3.0.1"
-    lru-cache "^5.1.1"
-    rlp "^2.2.2"
-    semaphore "^1.1.0"
-
-ethereumjs-common@^1.5.0:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/ethereumjs-common/-/ethereumjs-common-1.5.2.tgz#2065dbe9214e850f2e955a80e650cb6999066979"
-  integrity sha512-hTfZjwGX52GS2jcVO6E2sx4YuFnf0Fhp5ylo4pEPhEffNln7vS59Hr5sLnp3/QCazFLluuBZ+FZ6J5HTp0EqCA==
-
-ethereumjs-tx@^2.1.1, ethereumjs-tx@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-2.1.2.tgz#5dfe7688bf177b45c9a23f86cf9104d47ea35fed"
-  integrity sha512-zZEK1onCeiORb0wyCXUvg94Ve5It/K6GD1K+26KfFKodiBiS6d9lfCXlUKGBBdQ+bv7Day+JK0tj1K+BeNFRAw==
-  dependencies:
-    ethereumjs-common "^1.5.0"
-    ethereumjs-util "^6.0.0"
-
 ethereumjs-util@^4.3.0:
   version "4.5.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-4.5.1.tgz#f4bf9b3b515a484e3cc8781d61d9d980f7c83bd0"
@@ -1197,7 +1412,7 @@ ethereumjs-util@^4.3.0:
     ethereum-cryptography "^0.1.3"
     rlp "^2.0.0"
 
-ethereumjs-util@^5.0.0, ethereumjs-util@^5.1.1, ethereumjs-util@^5.2.0:
+ethereumjs-util@^5.1.1:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz#a833f0e5fca7e5b361384dc76301a721f537bf65"
   integrity sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==
@@ -1210,7 +1425,7 @@ ethereumjs-util@^5.0.0, ethereumjs-util@^5.1.1, ethereumjs-util@^5.2.0:
     rlp "^2.0.0"
     safe-buffer "^5.1.1"
 
-ethereumjs-util@^6.0.0, ethereumjs-util@^6.1.0, ethereumjs-util@^6.2.0:
+ethereumjs-util@^6.0.0:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz#fcb4e4dd5ceacb9d2305426ab1a5cd93e3163b69"
   integrity sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==
@@ -1223,12 +1438,12 @@ ethereumjs-util@^6.0.0, ethereumjs-util@^6.1.0, ethereumjs-util@^6.2.0:
     ethjs-util "0.1.6"
     rlp "^2.2.3"
 
-ethereumjs-util@^7.0.2:
-  version "7.0.7"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.0.7.tgz#484fb9c03b766b2ee64821281070616562fb5a59"
-  integrity sha512-vU5rtZBlZsgkTw3o6PDKyB8li2EgLavnAbsKcfsH2YhHH1Le+PP8vEiMnAnvgc1B6uMoaM5GDCrVztBw0Q5K9g==
+ethereumjs-util@^7.0.10, ethereumjs-util@^7.0.7, ethereumjs-util@^7.1.0:
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.0.tgz#e2b43a30bfcdbcb432a4eb42bd5f2393209b3fd5"
+  integrity sha512-kR+vhu++mUDARrsMMhsjjzPduRVAeundLGXucGRHF3B4oEltOUspfgCVco4kckucj3FMlLaZHUl9n7/kdmr6Tw==
   dependencies:
-    "@types/bn.js" "^4.11.3"
+    "@types/bn.js" "^5.1.0"
     bn.js "^5.1.2"
     create-hash "^1.1.2"
     ethereum-cryptography "^0.1.3"
@@ -1292,12 +1507,10 @@ evp_bytestokey@^1.0.3:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
 
-fake-merkle-patricia-tree@^1.0.1:
+exit-on-epipe@~1.0.1:
   version "1.0.1"
-  resolved "https://registry.yarnpkg.com/fake-merkle-patricia-tree/-/fake-merkle-patricia-tree-1.0.1.tgz#4b8c3acfb520afadf9860b1f14cd8ce3402cddd3"
-  integrity sha1-S4w6z7Ugr635hgsfFM2M40As3dM=
-  dependencies:
-    checkpoint-store "^1.1.0"
+  resolved "https://registry.yarnpkg.com/exit-on-epipe/-/exit-on-epipe-1.0.1.tgz#0bdd92e87d5285d267daa8171d0eb06159689692"
+  integrity sha512-h2z5mrROTxce56S+pnvAV890uu7ls7f1kEvVGJbw1OlFH3/mlJ5bkXu0KRyW94v37zzHPiUd55iLn3DA7TjWpw==
 
 fill-range@^7.0.1:
   version "7.0.1"
@@ -1327,11 +1540,6 @@ flat@^4.1.0:
   dependencies:
     is-buffer "~2.0.3"
 
-flow-stoplight@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/flow-stoplight/-/flow-stoplight-1.0.0.tgz#4a292c5bcff8b39fa6cc0cb1a853d86f27eeff7b"
-  integrity sha1-SiksW8/4s5+mzAyxqFPYbyfu/3s=
-
 fmix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/fmix/-/fmix-0.1.0.tgz#c7bbf124dec42c9d191cfb947d0a9778dd986c0c"
@@ -1351,6 +1559,13 @@ follow-redirects@^1.12.1:
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.1.tgz#5f69b813376cee4fd0474a3aba835df04ab763b7"
   integrity sha512-SSG5xmZh1mkPGyKzjZP8zLjltIfpW32Y5QpdNJyjcfGxK3qo3NDDkZOZSFiGn1A6SclQxY9GzEwAHQ3dmYRWpg==
 
+for-each@^0.3.3:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/for-each/-/for-each-0.3.3.tgz#69b447e88a0a5d32c3e7084f3f1710034b21376e"
+  integrity sha512-jqYfLp7mo9vIyQf8ykW2v7A+2N4QjeCeI5+Dz9XraiO1ign81wjiH7Fb9vSOWvQfNtmSa4H2RoQTrrXivdUZmw==
+  dependencies:
+    is-callable "^1.1.3"
+
 form-data@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-3.0.0.tgz#31b7e39c85f1355b7139ee0c647cf0de7f83c682"
@@ -1434,6 +1649,15 @@ get-intrinsic@^1.0.0:
     has "^1.0.3"
     has-symbols "^1.0.1"
 
+get-intrinsic@^1.0.2, get-intrinsic@^1.1.0, get-intrinsic@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/get-intrinsic/-/get-intrinsic-1.1.1.tgz#15f59f376f855c446963948f0d24cd3637b4abc6"
+  integrity sha512-kWZrnVM42QCiEA2Ig1bG8zjoIMOgxWwYCEeNdwY6Tv/cOSeGpcoX4pXHfKUxNKVoArnrEr2e9srnAxxGIraS9Q==
+  dependencies:
+    function-bind "^1.1.1"
+    has "^1.0.3"
+    has-symbols "^1.0.1"
+
 glob-parent@~5.1.0:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-5.1.1.tgz#b6c1ef417c4e5663ea498f1c45afac6916bbc229"
@@ -1506,15 +1730,20 @@ hardhat-deploy@^0.7.0-beta.39:
     murmur-128 "^0.2.1"
     qs "^6.9.4"
 
-hardhat@^2.0.6:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.0.6.tgz#51f161e00b3c03f03fbf32027009d0ca50ad56db"
-  integrity sha512-wFTamcSUBMGwpgFxWu7ptg5o07FQyr8Ce8072rzE+QjpwM0uD3GRdhlqn+O1w+awQZ7AhK44njpAoRPUelOf/Q==
-  dependencies:
-    "@nomiclabs/ethereumjs-vm" "^4.1.1"
+hardhat@^2.4.3:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.5.0.tgz#0a10bf85d9b2c3c7c12cfa4e35454296c670c054"
+  integrity sha512-S5CWcmiFZlFF2qFGyf5LlgVnJDXwTs5UBKU3GPQCjsUD3NAIWzXr/4xDSij3YWdg751axgLiKAJM01cHcxGb7A==
+  dependencies:
+    "@ethereumjs/block" "^3.4.0"
+    "@ethereumjs/blockchain" "^5.4.0"
+    "@ethereumjs/common" "^2.4.0"
+    "@ethereumjs/tx" "^3.3.0"
+    "@ethereumjs/vm" "^5.5.0"
+    "@ethersproject/abi" "^5.1.2"
     "@sentry/node" "^5.18.1"
-    "@solidity-parser/parser" "^0.7.1"
-    "@types/bn.js" "^4.11.5"
+    "@solidity-parser/parser" "^0.11.0"
+    "@types/bn.js" "^5.1.0"
     "@types/lru-cache" "^5.1.0"
     abort-controller "^3.0.0"
     adm-zip "^0.4.16"
@@ -1528,19 +1757,17 @@ hardhat@^2.0.6:
     eth-sig-util "^2.5.2"
     ethereum-cryptography "^0.1.2"
     ethereumjs-abi "^0.6.8"
-    ethereumjs-account "^3.0.0"
-    ethereumjs-block "^2.2.0"
-    ethereumjs-common "^1.5.0"
-    ethereumjs-tx "^2.1.1"
-    ethereumjs-util "^6.1.0"
+    ethereumjs-util "^7.1.0"
     find-up "^2.1.0"
     fp-ts "1.19.3"
     fs-extra "^7.0.1"
     glob "^7.1.3"
+    https-proxy-agent "^5.0.0"
     immutable "^4.0.0-rc.12"
     io-ts "1.10.4"
     lodash "^4.17.11"
-    merkle-patricia-tree "^3.0.0"
+    merkle-patricia-tree "^4.2.0"
+    mnemonist "^0.38.0"
     mocha "^7.1.2"
     node-fetch "^2.6.0"
     qs "^6.7.0"
@@ -1554,7 +1781,12 @@ hardhat@^2.0.6:
     "true-case-path" "^2.2.1"
     tsort "0.0.1"
     uuid "^3.3.2"
-    ws "^7.2.1"
+    ws "^7.4.6"
+
+has-bigints@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/has-bigints/-/has-bigints-1.0.1.tgz#64fe6acb020673e3b78db035a5af69aa9d07b113"
+  integrity sha512-LSBS2LjbNBTf6287JEbEzvJgftkF5qFkmCo9hDRpAzKhUOlJ+hx8dd4USs00SgsUNwc4617J9ki5YtEClM2ffA==
 
 has-flag@^3.0.0:
   version "3.0.0"
@@ -1571,6 +1803,11 @@ has-symbols@^1.0.0, has-symbols@^1.0.1:
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.1.tgz#9f5214758a44196c406d9bd76cebf81ec2dd31e8"
   integrity sha512-PLcsoqu++dmEIZB+6totNFKq/7Do+Z0u4oT0zKOJNl3lYK6vGwwu2hjHs+68OEZbTjiUE9bgOABXbP/GvrS0Kg==
 
+has-symbols@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.2.tgz#165d3070c00309752a1236a479331e3ac56f1423"
+  integrity sha512-chXa79rL/UC2KlX17jo3vRGz0azaWEx5tGqZg5pO3NUyEJVB17dMruQlzCCOfUvElghKcm5194+BCRvi2Rv/Gw==
+
 has@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
@@ -1595,7 +1832,7 @@ hash.js@1.1.3:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.0"
 
-hash.js@^1.0.0, hash.js@^1.0.3, hash.js@^1.1.7:
+hash.js@1.1.7, hash.js@^1.0.0, hash.js@^1.0.3, hash.js@^1.1.7:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.7.tgz#0babca538e8d4ee4a0f8988d68866537a003cf42"
   integrity sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==
@@ -1608,7 +1845,7 @@ he@1.2.0:
   resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
   integrity sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==
 
-hmac-drbg@^1.0.0:
+hmac-drbg@^1.0.0, hmac-drbg@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
   integrity sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=
@@ -1676,11 +1913,20 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.4, inherits@^2.0.1, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.1, inherits@~2.0.3:
+inherits@2, inherits@2.0.4, inherits@^2.0.1, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.1:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
   integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
 
+internal-slot@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/internal-slot/-/internal-slot-1.0.3.tgz#7347e307deeea2faac2ac6205d4bc7d34967f59c"
+  integrity sha512-O0DB1JC/sPyZl7cIo78n5dR7eUSwwpYPiXRhTzNxZVAMUuB8vlnRFyLxdrVToks6XPLVnFfbzaVd5WLjhgg+vA==
+  dependencies:
+    get-intrinsic "^1.1.0"
+    has "^1.0.3"
+    side-channel "^1.0.4"
+
 io-ts@1.10.4:
   version "1.10.4"
   resolved "https://registry.yarnpkg.com/io-ts/-/io-ts-1.10.4.tgz#cd5401b138de88e4f920adbcb7026e2d1967e6e2"
@@ -1688,6 +1934,11 @@ io-ts@1.10.4:
   dependencies:
     fp-ts "^1.0.0"
 
+is-bigint@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-bigint/-/is-bigint-1.0.2.tgz#ffb381442503235ad245ea89e45b3dbff040ee5a"
+  integrity sha512-0JV5+SOCQkIdzjBK9buARcV804Ddu7A0Qet6sHi3FimE9ne6m4BGQZfRn+NZiXbBk4F4XmHfDZIipLj9pX8dSA==
+
 is-binary-path@~2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-2.1.0.tgz#ea1f7f3b80f064236e83470f86c09c254fb45b09"
@@ -1695,11 +1946,23 @@ is-binary-path@~2.1.0:
   dependencies:
     binary-extensions "^2.0.0"
 
+is-boolean-object@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/is-boolean-object/-/is-boolean-object-1.1.1.tgz#3c0878f035cb821228d350d2e1e36719716a3de8"
+  integrity sha512-bXdQWkECBUIAcCkeH1unwJLIpZYaa5VvuygSyS/c2lf719mTKZDU5UdDRlpd01UjADgmW8RfqaP+mRaVPdr/Ng==
+  dependencies:
+    call-bind "^1.0.2"
+
 is-buffer@~2.0.3:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-2.0.5.tgz#ebc252e400d22ff8d77fa09888821a24a658c191"
   integrity sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==
 
+is-callable@^1.1.3, is-callable@^1.2.3:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.3.tgz#8b1e0500b73a1d76c70487636f368e519de8db8e"
+  integrity sha512-J1DcMe8UYTBSrKezuIUTUwjXsho29693unXM2YhJUTR2txK/eG47bvNa/wipPFmZFgr/N6f1GA66dv0mEyTIyQ==
+
 is-callable@^1.1.4, is-callable@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.2.tgz#c7c6715cd22d4ddb48d3e19970223aceabb080d9"
@@ -1732,11 +1995,16 @@ is-hex-prefixed@1.0.0:
   resolved "https://registry.yarnpkg.com/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz#7d8d37e6ad77e5d127148913c573e082d777f554"
   integrity sha1-fY035q135dEnFIkTxXPggtd39VQ=
 
-is-negative-zero@^2.0.0:
+is-negative-zero@^2.0.0, is-negative-zero@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/is-negative-zero/-/is-negative-zero-2.0.1.tgz#3de746c18dda2319241a53675908d8f766f11c24"
   integrity sha512-2z6JzQvZRa9A2Y7xC6dQQm4FSTSTNWjKIYYTt4246eMTJmIo0Q+ZyOsU66X8lxK1AbB92dFeglPLrhwpeRKO6w==
 
+is-number-object@^1.0.4:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/is-number-object/-/is-number-object-1.0.5.tgz#6edfaeed7950cff19afedce9fbfca9ee6dd289eb"
+  integrity sha512-RU0lI/n95pMoUKu9v1BZP5MBcZuNSVJkMkAG2dJqC4z2GlkGUNeH68SuHuBKBD/XFe+LHZ+f9BKkLET60Niedw==
+
 is-number@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-7.0.0.tgz#7535345b896734d5f80c4d06c50955527a14f12b"
@@ -1749,6 +2017,19 @@ is-regex@^1.1.1:
   dependencies:
     has-symbols "^1.0.1"
 
+is-regex@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.1.3.tgz#d029f9aff6448b93ebbe3f33dac71511fdcbef9f"
+  integrity sha512-qSVXFz28HM7y+IWX6vLCsexdlvzT1PJNFSBuaQLQ5o0IEw8UDYW6/2+eCMVyIsbM8CNLX2a/QWmSpyxYEHY7CQ==
+  dependencies:
+    call-bind "^1.0.2"
+    has-symbols "^1.0.2"
+
+is-string@^1.0.5, is-string@^1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/is-string/-/is-string-1.0.6.tgz#3fe5d5992fb0d93404f32584d4b0179a71b54a5f"
+  integrity sha512-2gdzbKUuqtQ3lYNrUTQYoClPhm7oQu4UdpSZMp1/DGgkHBT8E2Z1l0yMdb6D4zNAxwDiMv8MdulKROJGNl0Q0w==
+
 is-symbol@^1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.3.tgz#38e1014b9e6329be0de9d24a414fd7441ec61937"
@@ -1756,15 +2037,12 @@ is-symbol@^1.0.2:
   dependencies:
     has-symbols "^1.0.1"
 
-isarray@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
-  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
-
-isarray@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
-  integrity sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=
+is-symbol@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.4.tgz#a6dac93b635b063ca6872236de88910a57af139c"
+  integrity sha512-C/CPBqKWnvdcxqIARxyOh4v1UUEOCHpgDa0WYgpKDFMszcrPcffg5uhwSgPCLD2WWxmq6isisz87tzT01tuGhg==
+  dependencies:
+    has-symbols "^1.0.2"
 
 isexe@^2.0.0:
   version "2.0.0"
@@ -1834,17 +2112,10 @@ level-codec@^9.0.0:
   dependencies:
     buffer "^5.6.0"
 
-level-codec@~7.0.0:
-  version "7.0.1"
-  resolved "https://registry.yarnpkg.com/level-codec/-/level-codec-7.0.1.tgz#341f22f907ce0f16763f24bddd681e395a0fb8a7"
-  integrity sha512-Ua/R9B9r3RasXdRmOtd+t9TCOEIIlts+TN/7XTT2unhDaL6sJn83S3rUyljbr6lVtw49N3/yA0HHjpV6Kzb2aQ==
-
-level-errors@^1.0.3:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-1.1.2.tgz#4399c2f3d3ab87d0625f7e3676e2d807deff404d"
-  integrity sha512-Sw/IJwWbPKF5Ai4Wz60B52yj0zYeqzObLh8k1Tk88jVmD51cJSKWSYpRyhVIvFzZdvsPqlH5wfhp/yxdsaQH4w==
-  dependencies:
-    errno "~0.1.1"
+level-concat-iterator@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/level-concat-iterator/-/level-concat-iterator-2.0.1.tgz#1d1009cf108340252cb38c51f9727311193e6263"
+  integrity sha512-OTKKOqeav2QWcERMJR7IS9CUo1sHnke2C0gkSmcR7QuEtFNLLzHQAvnMw8ykvEcv0Qtkg0p7FOwP1v9e5Smdcw==
 
 level-errors@^2.0.0, level-errors@~2.0.0:
   version "2.0.1"
@@ -1853,86 +2124,56 @@ level-errors@^2.0.0, level-errors@~2.0.0:
   dependencies:
     errno "~0.1.1"
 
-level-errors@~1.0.3:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-1.0.5.tgz#83dbfb12f0b8a2516bdc9a31c4876038e227b859"
-  integrity sha512-/cLUpQduF6bNrWuAC4pwtUKA5t669pCsCi2XbmojG2tFeOr9j6ShtdDCtFFQO1DRt+EVZhx9gPzP9G2bUaG4ig==
-  dependencies:
-    errno "~0.1.1"
-
-level-iterator-stream@~1.3.0:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-1.3.1.tgz#e43b78b1a8143e6fa97a4f485eb8ea530352f2ed"
-  integrity sha1-5Dt4sagUPm+pek9IXrjqUwNS8u0=
-  dependencies:
-    inherits "^2.0.1"
-    level-errors "^1.0.3"
-    readable-stream "^1.0.33"
-    xtend "^4.0.0"
-
-level-iterator-stream@~3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-3.0.1.tgz#2c98a4f8820d87cdacab3132506815419077c730"
-  integrity sha512-nEIQvxEED9yRThxvOrq8Aqziy4EGzrxSZK+QzEFAVuJvQ8glfyZ96GB6BoI4sBbLfjMXm2w4vu3Tkcm9obcY0g==
+level-iterator-stream@~4.0.0:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-4.0.2.tgz#7ceba69b713b0d7e22fcc0d1f128ccdc8a24f79c"
+  integrity sha512-ZSthfEqzGSOMWoUGhTXdX9jv26d32XJuHz/5YnuHZzH6wldfWMOVwI9TBtKcya4BKTyTt3XVA0A3cF3q5CY30Q==
   dependencies:
-    inherits "^2.0.1"
-    readable-stream "^2.3.6"
-    xtend "^4.0.0"
+    inherits "^2.0.4"
+    readable-stream "^3.4.0"
+    xtend "^4.0.2"
 
-level-mem@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/level-mem/-/level-mem-3.0.1.tgz#7ce8cf256eac40f716eb6489654726247f5a89e5"
-  integrity sha512-LbtfK9+3Ug1UmvvhR2DqLqXiPW1OJ5jEh0a3m9ZgAipiwpSxGj/qaVVy54RG5vAQN1nCuXqjvprCuKSCxcJHBg==
+level-mem@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/level-mem/-/level-mem-5.0.1.tgz#c345126b74f5b8aa376dc77d36813a177ef8251d"
+  integrity sha512-qd+qUJHXsGSFoHTziptAKXoLX87QjR7v2KMbqncDXPxQuCdsQlzmyX+gwrEHhlzn08vkf8TyipYyMmiC6Gobzg==
   dependencies:
-    level-packager "~4.0.0"
-    memdown "~3.0.0"
+    level-packager "^5.0.3"
+    memdown "^5.0.0"
 
-level-packager@~4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/level-packager/-/level-packager-4.0.1.tgz#7e7d3016af005be0869bc5fa8de93d2a7f56ffe6"
-  integrity sha512-svCRKfYLn9/4CoFfi+d8krOtrp6RoX8+xm0Na5cgXMqSyRru0AnDYdLl+YI8u1FyS6gGZ94ILLZDE5dh2but3Q==
+level-packager@^5.0.3:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/level-packager/-/level-packager-5.1.1.tgz#323ec842d6babe7336f70299c14df2e329c18939"
+  integrity sha512-HMwMaQPlTC1IlcwT3+swhqf/NUO+ZhXVz6TY1zZIIZlIR0YSn8GtAAWmIvKjNY16ZkEg/JcpAuQskxsXqC0yOQ==
   dependencies:
-    encoding-down "~5.0.0"
-    levelup "^3.0.0"
+    encoding-down "^6.3.0"
+    levelup "^4.3.2"
 
-level-ws@0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/level-ws/-/level-ws-0.0.0.tgz#372e512177924a00424b0b43aef2bb42496d228b"
-  integrity sha1-Ny5RIXeSSgBCSwtDrvK7QkltIos=
+level-supports@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/level-supports/-/level-supports-1.0.1.tgz#2f530a596834c7301622521988e2c36bb77d122d"
+  integrity sha512-rXM7GYnW8gsl1vedTJIbzOrRv85c/2uCMpiiCzO2fndd06U/kUXEEU9evYn4zFggBOg36IsBW8LzqIpETwwQzg==
   dependencies:
-    readable-stream "~1.0.15"
-    xtend "~2.1.1"
+    xtend "^4.0.2"
 
-level-ws@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/level-ws/-/level-ws-1.0.0.tgz#19a22d2d4ac57b18cc7c6ecc4bd23d899d8f603b"
-  integrity sha512-RXEfCmkd6WWFlArh3X8ONvQPm8jNpfA0s/36M4QzLqrLEIt1iJE9WBHLZ5vZJK6haMjJPJGJCQWfjMNnRcq/9Q==
+level-ws@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/level-ws/-/level-ws-2.0.0.tgz#207a07bcd0164a0ec5d62c304b4615c54436d339"
+  integrity sha512-1iv7VXx0G9ec1isqQZ7y5LmoZo/ewAsyDHNA8EFDW5hqH2Kqovm33nSFkSdnLLAK+I5FlT+lo5Cw9itGe+CpQA==
   dependencies:
     inherits "^2.0.3"
-    readable-stream "^2.2.8"
+    readable-stream "^3.1.0"
     xtend "^4.0.1"
 
-levelup@^1.2.1:
-  version "1.3.9"
-  resolved "https://registry.yarnpkg.com/levelup/-/levelup-1.3.9.tgz#2dbcae845b2bb2b6bea84df334c475533bbd82ab"
-  integrity sha512-VVGHfKIlmw8w1XqpGOAGwq6sZm2WwWLmlDcULkKWQXEA5EopA8OBNJ2Ck2v6bdk8HeEZSbCSEgzXadyQFm76sQ==
-  dependencies:
-    deferred-leveldown "~1.2.1"
-    level-codec "~7.0.0"
-    level-errors "~1.0.3"
-    level-iterator-stream "~1.3.0"
-    prr "~1.0.1"
-    semver "~5.4.1"
-    xtend "~4.0.0"
-
-levelup@^3.0.0:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/levelup/-/levelup-3.1.1.tgz#c2c0b3be2b4dc316647c53b42e2f559e232d2189"
-  integrity sha512-9N10xRkUU4dShSRRFTBdNaBxofz+PGaIZO962ckboJZiNmLuhVT6FZ6ZKAsICKfUBO76ySaYU6fJWX/jnj3Lcg==
+levelup@^4.3.2:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/levelup/-/levelup-4.4.0.tgz#f89da3a228c38deb49c48f88a70fb71f01cafed6"
+  integrity sha512-94++VFO3qN95cM/d6eBXvd894oJE0w3cInq9USsyQzzoJxmiYzPAocNcuGCPGGjoXqDVJcr3C1jzt1TSjyaiLQ==
   dependencies:
-    deferred-leveldown "~4.0.0"
+    deferred-leveldown "~5.3.0"
     level-errors "~2.0.0"
-    level-iterator-stream "~3.0.0"
+    level-iterator-stream "~4.0.0"
+    level-supports "~1.0.0"
     xtend "~4.0.0"
 
 locate-path@^2.0.0:
@@ -1985,6 +2226,13 @@ match-all@^1.2.6:
   resolved "https://registry.yarnpkg.com/match-all/-/match-all-1.2.6.tgz#66d276ad6b49655551e63d3a6ee53e8be0566f8d"
   integrity sha512-0EESkXiTkWzrQQntBu2uzKvLu6vVkUGz40nGPbSZuegcfE5UuSzNjLaIu76zJWuaT/2I3Z/8M06OlUOZLGwLlQ==
 
+mcl-wasm@^0.7.1:
+  version "0.7.8"
+  resolved "https://registry.yarnpkg.com/mcl-wasm/-/mcl-wasm-0.7.8.tgz#4d0dc5a92f7bd20892fd3fcd41764acf86fd1e6e"
+  integrity sha512-qNHlYO6wuEtSoH5A8TcZfCEHtw8gGPqF6hLZpQn2SVd/Mck0ELIKOkmj072D98S9B9CI/jZybTUC96q1P2/ZDw==
+  dependencies:
+    typescript "^4.3.4"
+
 md5.js@^1.3.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.5.tgz#b5d07b8e3216e3e27cd728d72f70d1e6a342005f"
@@ -1994,61 +2242,35 @@ md5.js@^1.3.4:
     inherits "^2.0.1"
     safe-buffer "^5.1.2"
 
-memdown@^1.0.0:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/memdown/-/memdown-1.4.1.tgz#b4e4e192174664ffbae41361aa500f3119efe215"
-  integrity sha1-tOThkhdGZP+65BNhqlAPMRnv4hU=
-  dependencies:
-    abstract-leveldown "~2.7.1"
-    functional-red-black-tree "^1.0.1"
-    immediate "^3.2.3"
-    inherits "~2.0.1"
-    ltgt "~2.2.0"
-    safe-buffer "~5.1.1"
-
-memdown@~3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/memdown/-/memdown-3.0.0.tgz#93aca055d743b20efc37492e9e399784f2958309"
-  integrity sha512-tbV02LfZMWLcHcq4tw++NuqMO+FZX8tNJEiD2aNRm48ZZusVg5N8NART+dmBkepJVye986oixErf7jfXboMGMA==
+memdown@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/memdown/-/memdown-5.1.0.tgz#608e91a9f10f37f5b5fe767667a8674129a833cb"
+  integrity sha512-B3J+UizMRAlEArDjWHTMmadet+UKwHd3UjMgGBkZcKAxAYVPS9o0Yeiha4qvz7iGiL2Sb3igUft6p7nbFWctpw==
   dependencies:
-    abstract-leveldown "~5.0.0"
+    abstract-leveldown "~6.2.1"
     functional-red-black-tree "~1.0.1"
     immediate "~3.2.3"
     inherits "~2.0.1"
     ltgt "~2.2.0"
-    safe-buffer "~5.1.1"
+    safe-buffer "~5.2.0"
 
 memorystream@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/memorystream/-/memorystream-0.3.1.tgz#86d7090b30ce455d63fbae12dda51a47ddcaf9b2"
   integrity sha1-htcJCzDORV1j+64S3aUaR93K+bI=
 
-merkle-patricia-tree@^2.1.2, merkle-patricia-tree@^2.3.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-2.3.2.tgz#982ca1b5a0fde00eed2f6aeed1f9152860b8208a"
-  integrity sha512-81PW5m8oz/pz3GvsAwbauj7Y00rqm81Tzad77tHBwU7pIAtN+TJnMSOJhxBKflSVYhptMMb9RskhqHqrSm1V+g==
-  dependencies:
-    async "^1.4.2"
-    ethereumjs-util "^5.0.0"
-    level-ws "0.0.0"
-    levelup "^1.2.1"
-    memdown "^1.0.0"
-    readable-stream "^2.0.0"
-    rlp "^2.0.0"
-    semaphore ">=1.0.1"
-
-merkle-patricia-tree@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-3.0.0.tgz#448d85415565df72febc33ca362b8b614f5a58f8"
-  integrity sha512-soRaMuNf/ILmw3KWbybaCjhx86EYeBbD8ph0edQCTed0JN/rxDt1EBN52Ajre3VyGo+91f8+/rfPIRQnnGMqmQ==
-  dependencies:
-    async "^2.6.1"
-    ethereumjs-util "^5.2.0"
-    level-mem "^3.0.1"
-    level-ws "^1.0.0"
-    readable-stream "^3.0.6"
-    rlp "^2.0.0"
-    semaphore ">=1.0.1"
+merkle-patricia-tree@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-4.2.0.tgz#a204b9041be5c25e8d14f0ff47021de090e811a1"
+  integrity sha512-0sBVXs7z1Q1/kxzWZ3nPnxSPiaHKF/f497UQzt9O7isRcS10tel9jM/4TivF6Jv7V1yFq4bWyoATxbDUOen5vQ==
+  dependencies:
+    "@types/levelup" "^4.3.0"
+    ethereumjs-util "^7.0.10"
+    level-mem "^5.0.1"
+    level-ws "^2.0.0"
+    readable-stream "^3.6.0"
+    rlp "^2.2.4"
+    semaphore-async-await "^1.5.1"
 
 miller-rabin@^4.0.0:
   version "4.0.1"
@@ -2099,6 +2321,13 @@ mkdirp@0.5.5:
   dependencies:
     minimist "^1.2.5"
 
+mnemonist@^0.38.0:
+  version "0.38.3"
+  resolved "https://registry.yarnpkg.com/mnemonist/-/mnemonist-0.38.3.tgz#35ec79c1c1f4357cfda2fe264659c2775ccd7d9d"
+  integrity sha512-2K9QYubXx/NAjv4VLq1d1Ly8pWNC5L3BrixtdkyTegXWJIqY+zLNDhhX/A+ZwWt70tB1S8H4BE8FLYEFyNoOBw==
+  dependencies:
+    obliterator "^1.6.1"
+
 mocha@^7.1.2:
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/mocha/-/mocha-7.2.0.tgz#01cc227b00d875ab1eed03a75106689cfed5a604"
@@ -2186,6 +2415,11 @@ normalize-path@^3.0.0, normalize-path@~3.0.0:
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-3.0.0.tgz#0dcd69ff23a1c9b11fd0978316644a0388216a65"
   integrity sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==
 
+object-inspect@^1.11.0, object-inspect@^1.9.0:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.11.0.tgz#9dceb146cedd4148a0d9e51ab88d34cf509922b1"
+  integrity sha512-jp7ikS6Sd3GxQfZJPyH3cjcbJF6GZPClgdV+EFygjFLQ5FmW/dRUnTd9PQ9k0JhoNDabWFbpF1yCdSWCC6gexg==
+
 object-inspect@^1.8.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.9.0.tgz#c90521d74e1127b67266ded3394ad6116986533a"
@@ -2196,11 +2430,6 @@ object-keys@^1.0.11, object-keys@^1.0.12, object-keys@^1.1.1:
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.1.1.tgz#1c47f272df277f3b1daf061677d9c82e2322c60e"
   integrity sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==
 
-object-keys@~0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-0.4.0.tgz#28a6aae7428dd2c3a92f3d95f21335dd204e0336"
-  integrity sha1-KKaq50KN0sOpLz2V8hM13SBOAzY=
-
 object.assign@4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.1.0.tgz#968bf1100d7956bb3ca086f006f846b3bc4008da"
@@ -2211,7 +2440,7 @@ object.assign@4.1.0:
     has-symbols "^1.0.0"
     object-keys "^1.0.11"
 
-object.assign@^4.1.1:
+object.assign@^4.1.1, object.assign@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.1.2.tgz#0ed54a342eceb37b38ff76eb831a0e788cb63940"
   integrity sha512-ixT2L5THXsApyiUPYKmW+2EHpXXe5Ii3M+f4e+aJFAHao5amFRW6J0OO6c/LU8Be47utCx2GL89hxGB6XSmKuQ==
@@ -2221,7 +2450,7 @@ object.assign@^4.1.1:
     has-symbols "^1.0.1"
     object-keys "^1.1.1"
 
-object.getownpropertydescriptors@^2.0.3, object.getownpropertydescriptors@^2.1.0:
+object.getownpropertydescriptors@^2.0.3:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.1.1.tgz#0dfda8d108074d9c563e80490c883b6661091544"
   integrity sha512-6DtXgZ/lIZ9hqx4GtZETobXLR/ZLaa0aqV0kzbn80Rf8Z2e/XFnhA0I7p07N2wH8bBBltr2xQPi6sbKWAY2Eng==
@@ -2230,6 +2459,20 @@ object.getownpropertydescriptors@^2.0.3, object.getownpropertydescriptors@^2.1.0
     define-properties "^1.1.3"
     es-abstract "^1.18.0-next.1"
 
+object.getownpropertydescriptors@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.1.2.tgz#1bd63aeacf0d5d2d2f31b5e393b03a7c601a23f7"
+  integrity sha512-WtxeKSzfBjlzL+F9b7M7hewDzMwy+C8NRssHd1YrNlzHzIDrXcXiNOMrezdAEM4UXixgV+vvnyBeN7Rygl2ttQ==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+    es-abstract "^1.18.0-next.2"
+
+obliterator@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/obliterator/-/obliterator-1.6.1.tgz#dea03e8ab821f6c4d96a299e17aef6a3af994ef3"
+  integrity sha512-9WXswnqINnnhOG/5SLimUlzuU1hFJUc8zkwyD59Sd+dPOMf05PmnYG/d6Q7HZ+KmgkZJa1PxRso6QdM3sTNHig==
+
 once@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -2311,10 +2554,10 @@ picomatch@^2.0.4, picomatch@^2.2.1:
   resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.2.2.tgz#21f333e9b6b8eaff02468f5146ea406d345f4dad"
   integrity sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==
 
-process-nextick-args@~2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"
-  integrity sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==
+printj@~1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/printj/-/printj-1.1.2.tgz#d90deb2975a8b9f600fb3a1c94e3f4c53c78a222"
+  integrity sha512-zA2SmoLaxZyArQTOPj5LXecR+RagfPSU5Kw1qP+jkWeNlrq+eJZyY2oS68SU1Z/7/myXM4lo9716laOFAVStCQ==
 
 prr@~1.0.1:
   version "1.0.1"
@@ -2343,30 +2586,7 @@ raw-body@^2.4.1:
     iconv-lite "0.4.24"
     unpipe "1.0.0"
 
-readable-stream@^1.0.33:
-  version "1.1.14"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
-  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
-readable-stream@^2.0.0, readable-stream@^2.2.8, readable-stream@^2.3.6:
-  version "2.3.7"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.7.tgz#1eca1cf711aef814c04f62252a36a62f6cb23b57"
-  integrity sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.3"
-    isarray "~1.0.0"
-    process-nextick-args "~2.0.0"
-    safe-buffer "~5.1.1"
-    string_decoder "~1.1.1"
-    util-deprecate "~1.0.1"
-
-readable-stream@^3.0.6, readable-stream@^3.6.0:
+readable-stream@^3.1.0, readable-stream@^3.4.0, readable-stream@^3.6.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
   integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
@@ -2375,16 +2595,6 @@ readable-stream@^3.0.6, readable-stream@^3.6.0:
     string_decoder "^1.1.1"
     util-deprecate "^1.0.1"
 
-readable-stream@~1.0.15:
-  version "1.0.34"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
-  integrity sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
 readdirp@~3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-3.2.0.tgz#c30c33352b12c96dfb4b895421a49fd5a9593839"
@@ -2436,7 +2646,7 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^3.0.0"
     inherits "^2.0.1"
 
-rlp@^2.0.0, rlp@^2.2.1, rlp@^2.2.2, rlp@^2.2.3, rlp@^2.2.4:
+rlp@^2.0.0, rlp@^2.2.3, rlp@^2.2.4:
   version "2.2.6"
   resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.6.tgz#c80ba6266ac7a483ef1e69e8e2f056656de2fb2c"
   integrity sha512-HAfAmL6SDYNWPUOJNrM500x4Thn4PZsEy5pijPh40U9WfNk0z15hUYzO9xVIMAdIHdFtD8CBDHd75Td1g36Mjg==
@@ -2453,11 +2663,6 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2,
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
 
-safe-buffer@~5.1.0, safe-buffer@~5.1.1:
-  version "5.1.2"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
-  integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
-
 "safer-buffer@>= 2.1.2 < 3":
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
@@ -2477,10 +2682,10 @@ secp256k1@^4.0.1:
     node-addon-api "^2.0.0"
     node-gyp-build "^4.2.0"
 
-semaphore@>=1.0.1, semaphore@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/semaphore/-/semaphore-1.1.0.tgz#aaad8b86b20fe8e9b32b16dc2ee682a8cd26a8aa"
-  integrity sha512-O4OZEaNtkMd/K0i6js9SL+gqy0ZCBMgUvlSqHKi4IBdjhe7wB8pwztUk1BbZ1fmrvpwFrPbHzqd2w5pTcJH6LA==
+semaphore-async-await@^1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/semaphore-async-await/-/semaphore-async-await-1.5.1.tgz#857bef5e3644601ca4b9570b87e9df5ca12974fa"
+  integrity sha1-hXvvXjZEYBykuVcLh+nfXKEpdPo=
 
 semver@^5.5.0, semver@^5.7.0:
   version "5.7.1"
@@ -2492,11 +2697,6 @@ semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
-semver@~5.4.1:
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
-  integrity sha512-WfG/X9+oATh81XtllIo/I8gOiY9EXRdv1cQdyykeXK17YcUW3EXUAi2To4pcH6nZtJPr7ZOpM5OMyWJZm+8Rsg==
-
 set-blocking@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -2520,6 +2720,15 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
+side-channel@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/side-channel/-/side-channel-1.0.4.tgz#efce5c8fdc104ee751b25c58d4290011fa5ea2cf"
+  integrity sha512-q5XPytqFEIKHkGdiMIrY10mvLRvnQh42/+GoBlFW3b2LXLE2xxJpZFdm94we0BaoV3RwJyGqg5wS7epxTv0Zvw==
+  dependencies:
+    call-bind "^1.0.0"
+    get-intrinsic "^1.0.2"
+    object-inspect "^1.9.0"
+
 slash@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
@@ -2595,6 +2804,14 @@ string.prototype.trimend@^1.0.1:
     call-bind "^1.0.0"
     define-properties "^1.1.3"
 
+string.prototype.trimend@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/string.prototype.trimend/-/string.prototype.trimend-1.0.4.tgz#e75ae90c2942c63504686c18b287b4a0b1a45f80"
+  integrity sha512-y9xCjw1P23Awk8EvTpcyL2NIr1j7wJ39f+k6lvRnSMz+mz9CGz9NYPelDk42kOz6+ql8xjfK8oYzy3jAP5QU5A==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+
 string.prototype.trimstart@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/string.prototype.trimstart/-/string.prototype.trimstart-1.0.3.tgz#9b4cb590e123bb36564401d59824298de50fd5aa"
@@ -2603,6 +2820,14 @@ string.prototype.trimstart@^1.0.1:
     call-bind "^1.0.0"
     define-properties "^1.1.3"
 
+string.prototype.trimstart@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/string.prototype.trimstart/-/string.prototype.trimstart-1.0.4.tgz#b36399af4ab2999b4c9c648bd7a3fb2bb26feeed"
+  integrity sha512-jh6e984OBfvxS50tdY2nRZnoC5/mLFKOREQfw8t5yytkoUsJRNxvI/E39qu1sD0OtWI3OC0XgKSmcWwziwYuZw==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+
 string_decoder@^1.1.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.3.0.tgz#42f114594a46cf1a8e30b0a84f56c78c3edac21e"
@@ -2610,18 +2835,6 @@ string_decoder@^1.1.1:
   dependencies:
     safe-buffer "~5.2.0"
 
-string_decoder@~0.10.x:
-  version "0.10.31"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
-  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
-
-string_decoder@~1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
-  integrity sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==
-  dependencies:
-    safe-buffer "~5.1.0"
-
 strip-ansi@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
@@ -2723,6 +2936,21 @@ type-fest@^0.7.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.7.1.tgz#8dda65feaf03ed78f0a3f9678f1869147f7c5c48"
   integrity sha512-Ne2YiiGN8bmrmJJEuTWTLJR32nh/JdL1+PSicowtNb0WFpn59GK8/lfD61bVtzguz7b3PBt74nxpv/Pw5po5Rg==
 
+typescript@^4.3.4:
+  version "4.3.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.5.tgz#4d1c37cc16e893973c45a06886b7113234f119f4"
+  integrity sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==
+
+unbox-primitive@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/unbox-primitive/-/unbox-primitive-1.0.1.tgz#085e215625ec3162574dc8859abee78a59b14471"
+  integrity sha512-tZU/3NqK3dA5gpE1KtyiJUrEB0lxnGkMFHptJ7q6ewdZ8s12QrODwNbhIJStmJkd1QDXa1NRA8aF2A1zk/Ypyw==
+  dependencies:
+    function-bind "^1.1.1"
+    has-bigints "^1.0.1"
+    has-symbols "^1.0.2"
+    which-boxed-primitive "^1.0.2"
+
 universalify@^0.1.0:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
@@ -2743,26 +2971,38 @@ unpipe@1.0.0:
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
   integrity sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=
 
-util-deprecate@^1.0.1, util-deprecate@~1.0.1:
+util-deprecate@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
   integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
 
-util.promisify@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.0.1.tgz#6baf7774b80eeb0f7520d8b81d07982a59abbaee"
-  integrity sha512-g9JpC/3He3bm38zsLupWryXHoEcS22YHthuPQSJdMy6KNrzIRzWqcsHzD/WUnqe45whVou4VIsPew37DoXWNrA==
+util.promisify@^1.0.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.1.1.tgz#77832f57ced2c9478174149cae9b96e9918cd54b"
+  integrity sha512-/s3UsZUrIfa6xDhr7zZhnE9SLQ5RIXyYfiVnMMyMDzOc8WhWN4Nbh36H842OyurKbCDAesZOJaVyvmSl6fhGQw==
   dependencies:
+    call-bind "^1.0.0"
     define-properties "^1.1.3"
-    es-abstract "^1.17.2"
+    for-each "^0.3.3"
     has-symbols "^1.0.1"
-    object.getownpropertydescriptors "^2.1.0"
+    object.getownpropertydescriptors "^2.1.1"
 
 uuid@^3.3.2:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.4.0.tgz#b23e4358afa8a202fe7a100af1f5f883f02007ee"
   integrity sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==
 
+which-boxed-primitive@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/which-boxed-primitive/-/which-boxed-primitive-1.0.2.tgz#13757bc89b209b049fe5d86430e21cf40a89a8e6"
+  integrity sha512-bwZdv0AKLpplFY2KZRX6TvyuN7ojjr7lwkg6ml0roIy9YeuSr7JS372qlNW18UQYzgYK9ziGcerWqZOmEn9VNg==
+  dependencies:
+    is-bigint "^1.0.1"
+    is-boolean-object "^1.1.0"
+    is-number-object "^1.0.4"
+    is-string "^1.0.5"
+    is-symbol "^1.0.3"
+
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
@@ -2801,23 +3041,16 @@ ws@7.2.3:
   resolved "https://registry.yarnpkg.com/ws/-/ws-7.2.3.tgz#a5411e1fb04d5ed0efee76d26d5c46d830c39b46"
   integrity sha512-HTDl9G9hbkNDk98naoR/cHDws7+EyYMOdL1BmjsZXRUjf7d+MficC4B7HLUPlSiho0vg+CWKrGIt/VJBd1xunQ==
 
-ws@^7.2.1:
-  version "7.4.1"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.1.tgz#a333be02696bd0e54cea0434e21dcc8a9ac294bb"
-  integrity sha512-pTsP8UAfhy3sk1lSk/O/s4tjD0CRwvMnzvwr4OKGX7ZvqZtUyx4KIJB5JWbkykPoc55tixMGgTNoh3k4FkNGFQ==
+ws@^7.4.6:
+  version "7.5.3"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.3.tgz#160835b63c7d97bfab418fc1b8a9fced2ac01a74"
+  integrity sha512-kQ/dHIzuLrS6Je9+uv81ueZomEwH0qVYstcAQ4/Z93K8zeko9gtAbttJWzoC5ukqXY1PpoouV3+VSOqEAFt5wg==
 
-xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0:
+xtend@^4.0.1, xtend@^4.0.2, xtend@~4.0.0:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
-xtend@~2.1.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-2.1.2.tgz#6efecc2a4dad8e6962c4901b337ce7ba87b5d28b"
-  integrity sha1-bv7MKk2tjmlixJAbM3znuoe10os=
-  dependencies:
-    object-keys "~0.4.0"
-
 y18n@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.1.tgz#8db2b83c31c5d75099bb890b23f3094891e247d4"