def when(obj, strict=None):
    """pass"""
    if isinstance(obj, str):
        obj = get_obj(obj)
    if strict is None:
        strict = True
    theMock = _get_mock(obj, strict=strict)

    class When(object):

        def __getattr__(self, method_name):
            return invocation.StubbedInvocation(theMock, method_name, strict=strict)
    return When()