@classmethod
def get_testing_options(cls, **kwargs):
    """Method to return a dictionary of testing options for this class.

        Returns:
            dict: Dictionary of variables to use for testing.

        """
    iobj = {'a': ['b', int(1), float(1.0)], 'c': {'z': 'hello'}}
    out = {'kwargs': {}, 'empty': {}, 'dtype': None, 'extra_kwargs': {},
        'objects': [iobj], 'typedef': {'type': 'object'}}
    out['contents'] = b'a:\n- b\n- 1\n- 1.0\nc:\n    z: hello\n'
    return out
