Argument() missing 1 required positional argument: "default"

[abdelkareemkobo]

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Example Code

import typer
from typing_extensions import Annotated

def main(
    name:Annotated[
        str,
        typer.Argument(
            help="Who to greet",show_default="Deadpoolio the amazing's name"
        ),
    ]="Wade Wilson"):
    print(f"Hello {name}")

if __name__=="__main__":
    typer.run(main)

Description

This code must work and when i typed python main.py --help or python main.py it should run but i get the following error:
Argument() missing 1 required positional argument: "default"

Operating System

Linux

Operating System Details

pop os

Typer Version

0.7.0

Python Version

3.10.11

Additional Context

No response

[Tong-Du]

Works fine on typer 0.9.0