Copy gr_copy from gnuradio import gr gr.copy($type.size*$vlen) self.$(id).set_enabled($enabled) set_enabled($enabled) Type type enum Complex complex size:gr.sizeof_gr_complex Float float size:gr.sizeof_float Int int size:gr.sizeof_int Short short size:gr.sizeof_short Byte byte size:gr.sizeof_char Enabled enabled True bool Enabled True Disabled False Vec Length vlen 1 int $vlen > 0 in $type $vlen out $type $vlen