def METHOD_NAME(self) -> "OrderedDict[str, OrderedDict]":
    """Creates a dictionary representation of self.
    Uses OrderedDict to ensure consistent ordering when converting to xml.
    The return value (OrderedDict) will be used to create the upload xml file.
    The xml file must have the tags in exactly the order of the object's xsd.
    (see https://github.com/openml/OpenML/blob/master/openml_OS/views/pages/api_new/v1/xsd/).
    Returns
    -------
    OrderedDict
        Flow represented as OrderedDict.
    """
    # Should be implemented in the base class.
    pass