from typing import Type
from enum import Enum
from typing import Sequence


def create_choices(enum_type: Type[Enum]) -> Sequence[str]:
    """Create choice strings.

    Args:
        enum_type: enum

    Returns:
        a collection of strings describing the choices in enum.

    """
    # mypy wants type annotation for v.
    return [f"{i}: {v.name}" for (i, v) in enumerate(enum_type)]