human
I wrote the below code

    def check(obj):
        '\n                                If    the    decorated    object    is    not    a    function,    raise    an    exception.\n                                '
        if (not isinstance(obj, FunctionType)):
            raise TypeError("Can't    use    implementer    with    classes.        Use    one    of    the    class-declaration    functions    instead.")
    return check

What's a good function header?
 Here's a good function header?
assistant
#Here's a good function header.

def _functionOnlyImplementer(*interfaces):