Specify definite typing based on context, change inharitance to python in-built types

Author: Grimpy101

flask_phpbb3/backends/psycopg2.py

@@ -106,7 +106,7 @@ def _prepare_custom_fields_statements(self) -> None:
         Prepares statements for custom fields
         """
         # Setters for custom fields
-        custom_fields: typing.List[typing.Any] =\
+        custom_fields: typing.List[str] =\
             self._config.get('CUSTOM_USER_FIELDS', [])
         for custom_field in custom_fields:
             self._functions["set_{0}".format(custom_field)] = (

flask_phpbb3/sessions.py

@@ -17,7 +17,7 @@
 
 
 # TODO: Inheriting Dict causes a type-checker error, possibly restructure
-class PhpBB3Session(typing.Dict[str, typing.Any], flask.sessions.SessionMixin):
+class PhpBB3Session(dict, flask.sessions.SessionMixin):
     def __init__(self) -> None:
         # Some session related variables
         self.modified: bool = False