shared/foldable/device_state_configuration.xml

<device-state-config>
  <device-state>
    <identifier>0</identifier>
    <name>CLOSED</name>
    <conditions>
      <lid-switch>
        <open>false</open>
      </lid-switch>
    </conditions>
  </device-state>
  <device-state>
    <!-- TODO(b/181583265): Use the hinge sensor for HALF_OPENED state.
      Currently using an identifier of 3 so that this state never takes
      precedence over the lower-identifier-value CLOSED and OPENED states,
      until a hinge sensor is available. -->
    <identifier>3</identifier>
    <name>HALF_OPENED</name>
    <conditions></conditions>
  </device-state>
  <device-state>
    <identifier>2</identifier>
    <name>OPENED</name>
    <conditions>
      <lid-switch>
        <open>true</open>
      </lid-switch>
    </conditions>
  </device-state>
</device-state-config>