plugins/devkit/devkit-java-tests/testData/inspections/componentNotRegistered/registeredAction-plugin.xml

<idea-plugin>
  <actions>
    <action id="registeredAction" class="RegisteredAction"/>
    <group id="group">
      <group id="nestedGroup">
        <action id="registeredInnerAction" class="RegisteredAction$InnerAction"/>
      </group>
    </group>
  </actions>
</idea-plugin>