codespell: workflow, config + some (quite a few) typos fixed (#6785)

Probably the most  boring PR to review ;)

Individual commits might be easier to digest

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>
Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>

tests/integration_tests/chains/test_sql_database.py

@@ -67,7 +67,7 @@ def test_sql_database_sequential_chain_run() -> None:
 
 def test_sql_database_sequential_chain_intermediate_steps() -> None:
     """Test that commands can be run successfully SEQUENTIALLY and returned
-    in correct format. sWith Intermediate steps"""
+    in correct format. switch Intermediate steps"""
     engine = create_engine("sqlite:///:memory:")
     metadata_obj.create_all(engine)
     stmt = insert(user).values(user_id=13, user_name="Harrison", user_company="Foo")

tests/integration_tests/document_loaders/test_blockchain.py

@@ -21,7 +21,7 @@ def test_get_nfts_valid_contract() -> None:
     )
     result = BlockchainDocumentLoader(contract_address).load()
 
-    print("Tokens returend for valid contract: ", len(result))
+    print("Tokens returned for valid contract: ", len(result))
 
     assert len(result) == max_alchemy_tokens, (
         f"Wrong number of NFTs returned.  "
@@ -43,7 +43,7 @@ def test_get_nfts_with_pagination() -> None:
         startToken=startToken,
     ).load()
 
-    print("Tokens returend for contract with offset: ", len(result))
+    print("Tokens returned for contract with offset: ", len(result))
 
     assert len(result) > 0, "No NFTs returned"
 
@@ -57,7 +57,7 @@ def test_get_nfts_polygon() -> None:
         contract_address, BlockchainType.POLYGON_MAINNET
     ).load()
 
-    print("Tokens returend for contract on Polygon: ", len(result))
+    print("Tokens returned for contract on Polygon: ", len(result))
 
     assert len(result) > 0, "No NFTs returned"
 

tests/integration_tests/vectorstores/test_clarifai.py

@@ -1,4 +1,4 @@
-"""Test Clarifai vectore store functionality."""
+"""Test Clarifai vector store functionality."""
 import time
 
 from langchain.docstore.document import Document

tests/unit_tests/agents/test_agent.py

@@ -201,7 +201,7 @@ def test_agent_tool_return_direct_in_intermediate_steps() -> None:
 
 
 def test_agent_with_new_prefix_suffix() -> None:
-    """Test agent initilization kwargs with new prefix and suffix."""
+    """Test agent initialization kwargs with new prefix and suffix."""
     fake_llm = FakeListLLM(
         responses=["FooBarBaz\nAction: Search\nAction Input: misalignment"]
     )

tests/unit_tests/evaluation/run_evaluators/test_loading.py

@@ -1,4 +1,4 @@
-"""Test the loading function for evalutors."""
+"""Test the loading function for evaluators."""
 
 from unittest.mock import MagicMock
 

tests/unit_tests/evaluation/test_loading.py

@@ -1,4 +1,4 @@
-"""Test the loading function for evalutors."""
+"""Test the loading function for evaluators."""
 
 import pytest
 

tests/unit_tests/tools/openapi/test_api_models.py

@@ -22,17 +22,18 @@ from langchain.tools.openapi.utils.api_models import (
 )
 from langchain.tools.openapi.utils.openapi_utils import HTTPVerb, OpenAPISpec
 
-_DIR = Path(__file__).parent
+SPECS_DIR = Path(__file__).parents[2] / "examples" / "test_specs"
 
 
 def _get_test_specs() -> Iterable[Path]:
     """Walk the test_specs directory and collect all files with the name 'apispec'
     in them.
     """
-    test_specs_dir = _DIR / "test_specs"
+    if not SPECS_DIR.exists():
+        raise ValueError
     return (
         Path(root) / file
-        for root, _, files in os.walk(test_specs_dir)
+        for root, _, files in os.walk(SPECS_DIR)
         for file in files
         if file.startswith("apispec")
     )
@@ -84,7 +85,7 @@ def test_parse_api_operations(
     try:
         APIOperation.from_openapi_spec(spec, path, method)
     except Exception as e:
-        raise AssertionError(f"Error processong {spec_name}: {e} ") from e
+        raise AssertionError(f"Error processing {spec_name}: {e} ") from e
 
 
 @pytest.fixture

tests/unit_tests/tools/test_base.py

@@ -84,7 +84,7 @@ def test_unannotated_base_tool_raises_error() -> None:
 
 
 def test_misannotated_base_tool_raises_error() -> None:
-    """Test that a BaseTool with the incorrrect typehint raises an exception.""" ""
+    """Test that a BaseTool with the incorrect typehint raises an exception.""" ""
     with pytest.raises(SchemaAnnotationError):
 
         class _MisAnnotatedTool(BaseTool):
@@ -564,7 +564,7 @@ def test_tool_with_kwargs() -> None:
 
 def test_missing_docstring() -> None:
     """Test error is raised when docstring is missing."""
-    # expect to throw a value error if theres no docstring
+    # expect to throw a value error if there's no docstring
     with pytest.raises(AssertionError, match="Function must have a docstring"):
 
         @tool