gr-howto-write-a-block/grc/howto_square_ff.xml


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<?xml version="1.0"?>
<block>
  <name>Square</name>
  <key>howto_square_ff</key>
  <category>HOWTO</category>
  <import>from gnuradio import howto</import>
  <make>howto.square_ff()</make>

  <sink>
    <name>in</name>
    <type>float</type>
  </sink>

  <source>
    <name>out</name>
    <type>float</type>
  </source>
</block>