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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 SendDatagram(self, Text, Streams=None):
 """Sends datagram to application streams. :Parameters: Text : unicode Text to send. Streams : sequence of `ApplicationStream` Streams to send the datagram to or None if all currently connected streams should be used. """

        if Streams is None:
            Streams = self.Streams
        for s in Streams:
            s.SendDatagram(Text)