human
I wrote the below code

    def myimport(*args):
        global importArgs
        importArgs = list(args)
        importArgs[1] = None
        importArgs[2] = None
        class X:
            abc = 3
            absolute_import = 2
            bar = 5
        return X
    old_import = get_builtins_dict()['__import__']
    try:
        get_builtins_dict()['__import__'] = myimport
        import abc
        AreEqual(importArgs, ['abc', None, None, None])
        from . import abc
        AreEqual(importArgs, ['', None, None, ('abc',), 1])
        from .. import abc
        AreEqual(importArgs, ['', None, None, ('abc',), 2])
        from ... import abc
        AreEqual(importArgs, ['', None, None, ('abc',), 3])
        from ...d import abc
        AreEqual(importArgs, ['d', None, None, ('abc',), 3])
        from ...d import abc, bar
        AreEqual(importArgs, ['d', None, None, ('abc', 'bar'), 3])
        from d import abc, bar
        AreEqual(importArgs, ['d', None, None, ('abc', 'bar')])
        code = 'from    __future__    import    absolute_import\nimport    abc'
        exec code in globals(), locals()
        AreEqual(importArgs, ['abc', None, None, None, 0])
        def f():
            exec 'from    import    abc'
        AssertError(SyntaxError, f)
    finally:
        get_builtins_dict()['__import__'] = old_import

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

def test_relative_control():