Address remaining issues manually

mira/dkg/client.py

@@ -14,7 +14,7 @@
 import pystow
 import requests
 from neo4j import GraphDatabase, Transaction, unit_of_work
-from pydantic import BaseModel, Field, validator
+from pydantic import BaseModel, Field, field_validator
 from tqdm import tqdm
 from typing_extensions import Literal, TypeAlias
 
@@ -110,9 +110,7 @@ class Entity(BaseModel):
     # Gets auto-populated
     link: Optional[str] = None
 
-    # TODO[pydantic]: We couldn't refactor the `validator`, please replace it by `field_validator` manually.
-    # Check https://docs.pydantic.dev/dev-v2/migration/#changes-to-validators for more information.
-    @validator("link")
+    @field_validator("link")
     def set_link(cls, value, values):
         """
         Set the value of the ``link`` field based on the value of the ``id``

mira/metamodel/utils.py

@@ -39,9 +39,7 @@ def safe_parse_expr(s: str, local_dict=None) -> sympy.Expr:
 
 class SympyExprStr(sympy.Expr):
     @classmethod
-    # TODO[pydantic]: We couldn't refactor `__get_validators__`, please create the `__get_pydantic_core_schema__` manually.
-    # Check https://docs.pydantic.dev/latest/migration/#defining-custom-types for more information.
-    def __get_validators__(cls):
+    def __get_pydantic_core_schema__(cls):
         yield cls.validate
 
     @classmethod