Pad Sink pad_sink Label label out string Input 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 Vec Length vlen 1 int $vlen > 0 in $type $vlen The inputs of this block will become the outputs to this flow graph when it is instantiated as a hierarchical block. Pad sink will be ordered alphabetically by their ids. The first pad sink will have an index of 0.