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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 _interpret_framer(self, args, kwargs):
 """ Interprets positional and keyword arguments related to framers. :param args: A tuple of positional arguments. The first such argument will be interpreted as a framer object, and the second will be interpreted as a framer state. :param kwargs: A dictionary of keyword arguments. The ``send`` and ``recv`` keyword arguments are interpreted as send and receive framers, respectively, and the ``send_state`` and ``recv_state`` keyword arguments are interpreted as states for those framers. :returns: An instance of ``FramerElement``, which may be pushed onto the framer stack. """


        # Cannot specify both positional and keyword arguments, but
        # must provide one or the other
        if not args and not kwargs:
            raise exc.InvalidFramerSpecification(
                "No framers specified")
        elif args and kwargs:
            raise exc.InvalidFramerSpecification(
                "Cannot mix positional and keyword framer specifications")

        # Start with the current send and receive framers
        send = self._send_framer
        recv = self._recv_framer
        send_state = self._send_state
        recv_state = self._recv_state

        # Now, is it positional style?
        if args:
            send = args[0]
            recv = args[0]

            # Do we have a state?
            if len(args) > 1:
                send_state = args[1]
                recv_state = args[1]
            else:
                # Allocate one
                state = framers.FramerState()

                # Initialize it
                send.initialize_state(state)

                send_state = state
                recv_state = state
        else:
            # OK, it's keyword style; do we have a send framer?
            if 'send' in kwargs:
                send = kwargs['send']

                # Do we have a send state?
                if 'send_state' in kwargs:
                    send_state = kwargs['send_state']
                else:
                    # Allocate one and initialize it
                    send_state = framers.FramerState()
                    send.initialize_state(send_state)

            # How about a receive framer?
            if 'recv' in kwargs:
                recv = kwargs['recv']

                # Do we have a recv state?
                if 'recv_state' in kwargs:
                    recv_state = kwargs['recv_state']
                else:
                    # Allocate one and initialize it
                    recv_state = framers.FramerState()
                    recv.initialize_state(recv_state)

        # Create and return a FramerElement
        return FramerElement(send, recv, send_state, recv_state)