Pad Sink pad_sink Num Inputs nports 1 int Input Type type enum Vec Length vlen 1 int $vlen > 0 0 < $nports in $type $vlen $nports This is a sink pad block for creating hierarchical flow graphs. \ The inputs of this block will become the outputs to this flow graph when it is instantiated as a hierarchical block. \ Limit one sink pad block per flow graph. Remember to set the generate options to hier block.