grc/misc_utils/gsm_msg_to_tag.xml

<?xml version="1.0"?>
<block>
  <name>Message To Tag</name>
  <key>gsm_msg_to_tag</key>
  <import>import grgsm</import>
  <make>grgsm.msg_to_tag()</make>

  <sink>
    <name>in</name>
    <type>complex</type>
  </sink>

  <sink>
    <name>msg</name>
    <type>message</type>
    <optional>1</optional>
  </sink>

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