def qos(self, prefetch_size, prefetch_count, apply_global=False):
        """Request specific Quality of Service."""
        self.channel.basic_qos(prefetch_size, prefetch_count,
                                apply_global)
def qos ( self , prefetch_size , prefetch_count , apply_global = False ) : self . channel . basic_qos ( prefetch_size , prefetch_count , apply_global )
Request specific Quality of Service.