from typing import Iterable
from typing import Any


def count_bool(blist: Iterable[Any]) -> int:
    """
    Counts the number of "truthy" members of the input list.

    Args:
        blist: list of booleans or other truthy/falsy things

    Returns:
        number of truthy items

    """
    return sum([1 if x else 0 for x in blist])