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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 prepare_dispatches(cls, message, recipients=None):
 """Creates Dispatch models for a given message and return them. :param Message message: Message model instance :param list|None recipients: A list or Recipient objects :return: list of created Dispatch models :rtype: list """

        return Dispatch.create(message, recipients or cls.get_subscribers())