extract filters into filter actions and delay their processing time to allow for registration of complex relations, refactoring and optimization, now one join with relations with same aliases are possible

ormar/relations/alias_manager.py

@@ -1,7 +1,7 @@
 import string
 import uuid
 from random import choices
-from typing import Dict, List, TYPE_CHECKING, Type
+from typing import Any, Dict, List, TYPE_CHECKING, Type
 
 import sqlalchemy
 from sqlalchemy import text
@@ -33,10 +33,10 @@ class AliasManager:
     def __init__(self) -> None:
         self._aliases_new: Dict[str, str] = dict()
 
-    def __contains__(self, item):
+    def __contains__(self, item: str) -> bool:
         return self._aliases_new.__contains__(item)
 
-    def __getitem__(self, key):
+    def __getitem__(self, key: str) -> Any:
         return self._aliases_new.__getitem__(key)
 
     @staticmethod