gnome-shell-extensions-extra/extensions/hibernate-status/schemas/org.gnome.shell.extensions.hibernate-status-button.gschema.xml

<?xml version="1.0" encoding="UTF-8"?>
<schemalist gettext-domain="hibernate-status-button">
  <schema path="/org/gnome/shell/extensions/hibernate-status-button/" id="org.gnome.shell.extensions.hibernate-status-button">
    <key type="b" name="hibernate-works-check">
      <default>true</default>
    </key>
  </schema>
</schemalist>