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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 _mine_send(self, tag, data):
        '''
        Send mine data to the master
        '''
        channel = salt.transport.client.ReqChannel.factory(self.opts)
        data['tok'] = self.tok
        try:
            ret = channel.send(data)
            return ret
        except SaltReqTimeoutError:
            log.warning('Unable to send mine data to master.')
            return None
        finally:
            channel.close()