✨ Feature: Add support for list of Literals.

[oskvr37]

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Example Code

import typer
from typing_extensions import Annotated
from typing import Literal


CATEGORIES_LITERAL = Literal["pc_parts", "vegetables", "fruits"]


def main(
    SELL_CATEGORIES: Annotated[
        list[CATEGORIES_LITERAL],
        typer.Option(
            "--sell",
            help="Categories to sell.",
        ),
    ] = [],
):
    products: list[tuple[str, CATEGORIES_LITERAL]] = [
        ("cpu", "pc_parts"),
        ("motherboard", "pc_parts"),
        ("tomato", "vegetables"),
    ]

    for product, category in products:
        typer.echo(f"you have {product}")

        if category in SELL_CATEGORIES:
            typer.echo(f"selling {product}")


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

Description

Run the script and assertion exception shows up:
AssertionError: List types with complex sub-types are not currently supported

User should see that he can use the option multiple times (list) and what options he is limited to (Literal).

╭─ Options 
│ --sell        * [pc_parts|vegetables|fruits]  Categories to sell. [default: [fruits]]
│ --help                                        Show this message and exit.

Operating System

Windows

Operating System Details

No response

Typer Version

0.20.0

Python Version

3.14

Additional Context

Similar issue where someone points out that list of Literals does not work #76