How to use the multimethod.overload function in multimethod

    @overload
    def func(x: isa(int, float)):
        return -x

@overload
def get_lines_num(draw, lines_param):
    raise InvalidArgument("Lines param must be an integer or None")

@overload
def get_columns(draw, columns: isa(int)):
    columns = [draw(sampled_from(valid_column_types))() for _ in range(columns)]
    return columns