René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Template functionality for argument blocks using `with_annotaed` decorator","articleBody":"# Feature Request\n\nTo avoid redundant code, add a template mechanism for argument blocks that appear in multiple commands. Using the `with_argparse` decorator this is easy by reusing a function that modifies a parser; `with_annotated` currently has no simple equivalent.\n\n## Possible solutions\n\n- Use a TypedDict + Unpack to reuse a named block of annotations:\n```python\nclass ArgumentBlock(TypedDict):\n    # define reusable keys/values here\n    ...\n\nclass App(Cmd):\n\n    @with_annotated\n    def do_a(..., **kwargs: Unpack[ArgumentBlock]) -\u003e None:\n        ...\n\n    @with_annotated\n    def do_b(..., **kwargs: Unpack[ArgumentBlock]) -\u003e None:\n        ...\n```\n\n- Allow attaching a predefined parser to the parser generated by `with_annotated`, and expose the resulting namespace inside the decorated method for easy access.\n\nBoth approaches reduce duplication; the second may be simpler to implement.","author":{"url":"https://github.com/neoniobium","@type":"Person","name":"neoniobium"},"datePublished":"2026-06-10T14:53:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/1689/cmd2/issues/1689"}