Brandon/general cleanup (#2059)

* clean up. fix type safety. address memory config docs

* improve manager

* Include fix for o1 models not supporting system messages

* more broad with o1

* address fix: Typo in expected_output string #2045

* drop prints

* drop prints

* wip

* wip

* fix failing memory tests

* Fix memory provider issue

* clean up short term memory

* revert ltm

* drop

* clean up linting issues

* more linting

src/crewai/memory/memory.py

@@ -1,9 +1,7 @@
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Optional
 
 from pydantic import BaseModel
 
-from crewai.memory.storage.rag_storage import RAGStorage
-
 
 class Memory(BaseModel):
     """