(self, doc)
Process a single document

        :param doc: The document dict to be processed.
        :returns: True if doc was processed successfully else False. If this returns False
        the document migration will be retried later.
Process a single document
Process a single document
def process_doc(self, doc):
        """Process a single document

        :param doc: The document dict to be processed.
        :returns: True if doc was processed successfully else False. If this returns False
        the document migration will be retried later.
        """
        raise NotImplementedError
def process_doc ( self , doc ) : raise NotImplementedError