plasma-framework/plasma/data/operations/storage.operations

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE kcfg SYSTEM
    "http://www.kde.org/standards/kcfg/1.0/kcfg.xsd">
<kcfg>
    <group name="save">
        <entry name="group" type="String">
            <label>Group the key/value saved belongs to</label>
        </entry>
        <entry name="key" type="String">
            <label>The key that indicizes the value in the storage</label>
        </entry>
        <entry name="data" type="Int">
            <label>The actual data to be stored.</label>
        </entry>
        <entry name="data" type="String">
            <label>The actual data to be stored.</label>
        </entry>
        <entry name="data" type="StringList">
            <label>The actual data to be stored.</label>
        </entry>
  </group>
  <group name="retrieve">
      <entry name="group" type="String">
          <label>Group the key/value saved belongs to</label>
      </entry>
      <entry name="key" type="String">
           <label>The key that indicizes the value in the storage. If empty all group will be retrieved.</label>
      </entry>
  </group>
  <group name="delete">
      <entry name="group" type="String">
          <label>Group the key/value saved belongs to</label>
      </entry>
      <entry name="key" type="String">
           <label>The key that indicizes the value in the storage. If empty all group will be deleted</label>
      </entry>
  </group>
  <group name="expire">
      <entry name="group" type="String">
          <label>Group the key/value saved belongs to. If empty all ntries will be checked for expiration.</label>
      </entry>
      <entry name="age" type="UInt">
          <label>Set the age the stored data will expire in seconds. Default is 4 days.</label>
          <default>345600</default>
      </entry>
  </group>
</kcfg>