Merge branch 'f-191-fix-mypy-errors-in-models-py-and-complete-type-hints' into 'dev'

Resolve "Fix mypy errors in models.py and complete type hints"

See merge request !134

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added ###
 
 * Support for Python 3.12
+* The `linkahead` module now opts into type checking and supports mypy.
 
 ### Changed ###
 

Makefile

@@ -44,7 +44,7 @@ lint:
 .PHONY: lint
 
 mypy:
-	mypy src/linkahead/common unittests
+	mypy src/linkahead/common unittests --exclude high_level_api.py --exclude connection.py
 .PHONY: mypy
 
 unittest:

src/linkahead/exceptions.py

@@ -354,6 +354,10 @@ class UnqualifiedPropertiesError(EntityError):
     """
 
 
+class EntityHasNoAclError(EntityError):
+    """This entity has no ACL (yet)."""
+
+
 class EntityDoesNotExistError(EntityError):
     """This entity does not exist."""