#NEWLINE# def prefetch_size( self , value , all_channels = False ) : #NEWLINE# #INDENT# 'Set a prefetch size in bytes for the channel (or all channels on the\n        same connection).\n\n        :param int value: The prefetch size to set\n        :param bool all_channels: Set the prefetch size on all channels on the\n                                  same connection\n\n        ' #NEWLINE# if ( value is None ) : #NEWLINE# #INDENT# return #NEWLINE# #UNINDENT# self . rpc ( spec . Basic . Qos ( prefetch_size = value , global_ = all_channels ) )