from typing import Any


def get_test_name(param: Any) -> str:
    """Get the test name from the parameter list of a parametrized test.

    Parameters
    ----------
    param : Any
        A parameter of the test

    Returns
    -------
    str :
        The name of the test or an empty string.

    """
    if isinstance(param, str) and param[0] == "#":
        return param[1:]
    return ""