(cls)
Override this to return a dict
        :return: {}
Override this to return a dict
        :return: {}
Override this to return a dict : return : {}
def get_context(cls):
        """
        Override this to return a dict
        :return: {}
        """
        raise NotImplementedError("please implement get_context")
def get_context ( cls ) : raise NotImplementedError ( "please implement get_context" )