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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 channel(self):
 """ channel lazy property """

        # start shell, non-blocking channel
        chan = self.cli.invoke_shell(width=360, height=80)
        chan.setblocking(0)
        # set channel timeout
        chan.settimeout(10)
        # now waiting for shell prompt ('username@')
        result = ""
        count = 0
        while count < 10:
            try:
                recv_part = chan.recv(16384).decode()
                result += recv_part
            except socket.timeout:
                # socket.timeout here means 'no more data'
                pass

            if result.find('%s@' % self.username) != -1:
                return chan
            time.sleep(1)
            count += 1
        # failed to get shell prompt on channel :-(
        raise StitchesConnectionException("Failed to get shell prompt")