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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _basic_return(self, args, msg):
 """Return a failed message This method returns an undeliverable message that was published with the "immediate" flag set, or an unroutable message published with the "mandatory" flag set. The reply code and text provide information about the reason that the message was undeliverable. PARAMETERS: reply_code: short The reply code. The AMQ reply codes are defined in AMQ RFC 011. reply_text: shortstr The localised reply text. This text can be logged as an aid to resolving issues. exchange: shortstr Specifies the name of the exchange that the message was originally published to. routing_key: shortstr Message routing key Specifies the routing key name specified when the message was published. """

        self.returned_messages.put(basic_return_t(
            args.read_short(),
            args.read_shortstr(),
            args.read_shortstr(),
            args.read_shortstr(),
            msg,
        ))