diff --git a/_static/documentation_options.js b/_static/documentation_options.js
index 9c8372d4..1c99f378 100644
--- a/_static/documentation_options.js
+++ b/_static/documentation_options.js
@@ -1,5 +1,5 @@
 const DOCUMENTATION_OPTIONS = {
-    VERSION: '1.7.85',
+    VERSION: '1.7.86',
     LANGUAGE: 'en',
     COLLAPSE_INDEX: false,
     BUILDER: 'html',
diff --git a/dflow.client.html b/dflow.client.html
index ade607a7..7bfb638a 100644
--- a/dflow.client.html
+++ b/dflow.client.html
@@ -5,12 +5,12 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
 
-    <title>dflow.client package &#8212; dflow 1.7.85
+    <title>dflow.client package &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -26,7 +26,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow.client package</a></li> 
       </ul>
@@ -115,7 +115,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow.client package</a></li> 
       </ul>
diff --git a/dflow.html b/dflow.html
index 600ce00c..01588e09 100644
--- a/dflow.html
+++ b/dflow.html
@@ -5,12 +5,12 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
 
-    <title>dflow package &#8212; dflow 1.7.85
+    <title>dflow package &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -26,7 +26,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow package</a></li> 
       </ul>
@@ -5248,7 +5248,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow package</a></li> 
       </ul>
diff --git a/dflow.plugins.html b/dflow.plugins.html
index 5ca11d61..1803877c 100644
--- a/dflow.plugins.html
+++ b/dflow.plugins.html
@@ -5,12 +5,12 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
 
-    <title>dflow.plugins package &#8212; dflow 1.7.85
+    <title>dflow.plugins package &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -26,7 +26,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow.plugins package</a></li> 
       </ul>
@@ -560,7 +560,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow.plugins package</a></li> 
       </ul>
diff --git a/dflow.python.html b/dflow.python.html
index dd0af470..5878dfb4 100644
--- a/dflow.python.html
+++ b/dflow.python.html
@@ -5,12 +5,12 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
 
-    <title>dflow.python package &#8212; dflow 1.7.85
+    <title>dflow.python package &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -26,7 +26,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow.python package</a></li> 
       </ul>
@@ -872,7 +872,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">dflow.python package</a></li> 
       </ul>
diff --git a/genindex.html b/genindex.html
index 30fce819..87cda15a 100644
--- a/genindex.html
+++ b/genindex.html
@@ -4,12 +4,12 @@
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Index &#8212; dflow 1.7.85
+    <title>Index &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -25,7 +25,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Index</a></li> 
       </ul>
@@ -2263,7 +2263,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Index</a></li> 
       </ul>
diff --git a/index.html b/index.html
index ea7bf6c9..a5e92906 100644
--- a/index.html
+++ b/index.html
@@ -5,12 +5,12 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
 
-    <title>Welcome to dflow’s documentation! &#8212; dflow 1.7.85
+    <title>Welcome to dflow’s documentation! &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -26,7 +26,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="#">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="#">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Welcome to dflow’s documentation!</a></li> 
       </ul>
@@ -96,7 +96,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="#">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="#">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Welcome to dflow’s documentation!</a></li> 
       </ul>
diff --git a/modules.html b/modules.html
index 8e31a1dd..2f816d45 100644
--- a/modules.html
+++ b/modules.html
@@ -5,12 +5,12 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
 
-    <title>src &#8212; dflow 1.7.85
+    <title>src &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -26,7 +26,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">src</a></li> 
       </ul>
@@ -860,7 +860,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">src</a></li> 
       </ul>
diff --git a/py-modindex.html b/py-modindex.html
index ca9b25f7..f6bbe90b 100644
--- a/py-modindex.html
+++ b/py-modindex.html
@@ -4,12 +4,12 @@
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Python Module Index &#8212; dflow 1.7.85
+    <title>Python Module Index &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="#" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Python Module Index</a></li> 
       </ul>
@@ -233,7 +233,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="#" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Python Module Index</a></li> 
       </ul>
diff --git a/search.html b/search.html
index 0ff04b65..9d809155 100644
--- a/search.html
+++ b/search.html
@@ -4,13 +4,13 @@
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Search &#8212; dflow 1.7.85
+    <title>Search &#8212; dflow 1.7.86
  documentation</title>
     <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=fa44fd50" />
     <link rel="stylesheet" type="text/css" href="_static/classic.css?v=514cf933" />
     
     
-    <script src="_static/documentation_options.js?v=e77602ae"></script>
+    <script src="_static/documentation_options.js?v=d08e88c4"></script>
     <script src="_static/doctools.js?v=888ff710"></script>
     <script src="_static/sphinx_highlight.js?v=dc90522c"></script>
     
@@ -31,7 +31,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Search</a></li> 
       </ul>
@@ -92,7 +92,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.85
+        <li class="nav-item nav-item-0"><a href="index.html">dflow 1.7.86
  documentation</a> &#187;</li>
         <li class="nav-item nav-item-this"><a href="">Search</a></li> 
       </ul>