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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 send(self):
 """Send the response header, including the status line and all the HTTP headers. """


        if hasattr(self, 'request'):
            self.request.responded = True
        self.connection.writer.write(str(self).encode())
        yield from self.connection.writer.drain()