<?xml version="1.0"?>
<block>
  <name>Calculate phase diff</name>
  <key>usrptest_phase_calc_ccf</key>
  <category>[usrptest]</category>
  <import>import usrptest</import>
  <make>usrptest.phase_calc_ccf()</make>
  <sink>
    <name>in1</name>
    <type>complex</type>
  </sink>
  <sink>
    <name>in2</name>
    <type>complex</type>
  </sink>
  <source>
    <name>out</name>
    <type>float</type>
  </source>
</block>