'Delivers up to 10 messages in a single request.
:type messages: List of lists.
:param messages: A list of lists or tuples.  Each inner
tuple represents a single message to be written
and consists of and ID (string) that must be unique
within the list of messages, the message body itself
which can be a maximum of 64K in length, an
integer which represents the delay time (in seconds)
for the message (0-900) before the message will
be delivered to the queue, and an optional dict of
message attributes like those passed to ``send_message``
in the connection class.'

def write_batch(self, messages):

    return self.connection.send_message_batch(self, messages)
