Generated docstring has empty :type for parameters annotated with generic types

[debonte]

Environment data

• Pylance version: 2024.9.104
• OS and version: Windows 11
• Python version: 3.9.12

Code Snippet

def foo(input_files: int, output: Union[str, None], output_multiple_files: bool):
    """"""

Repro Steps

1. Trigger completion within """"""

Expected behavior

:type line of each parameter includes its annotated type, because they are all annotated.

Actual behavior

output parameter's :type is blank. I also tried Tuple[int, int] and got the same result, so I suspect this has something to do with generics.

    """Docstring for foo
    
    :param input_files: Description
    :type input_files: int 
    :param output: Description
    :type output:  
    :param output_multiple_files: Description
    :type output_multiple_files: bool """