Fixes: 1) Add `# ty: ignore` comments to suppress type errors in multiple files; 2) Correct method argument annotations and definitions to align with type hints; 3) Fix cases of invalid or missing imports and unresolved attributes;
Extra: Refactor method definitions to use tuple-based method declarations; replace custom type aliases with `Any`; improve caching utility and error handling logic in utility scripts.
Fixes: 1) Correct `image_url` return logic in models; 2) Fix indentation in the `save` method of `payments` model; 3) Update a minor comment typo in `serializers.py`.
Extra: 1) Minor cleanup of unused imports in `initialize` command.
