No typing info for click.argument(..., shell_complete=callable)

[craigds]

Run mypy on a codebase containing:

import click
def func(*args):
    ...
click.argument('myarg', shell_completion=func)

mypy doesn't recognise this kwarg at all:

foo.py:7: error: Unexpected keyword argument "shell_completion" for "argument"  [call-arg]

Environment:

• Python version: 3.11.9
• Click version: 8.1.7