rule.xml

<?xml version="1.0" encoding="UTF-8" ?>
<rule name="ObmBuildingsInformation" category="building">
    <input>
        <param type="PostGISDatabase">database</param>
        <param type="int">key</param>
    </input>
    <function filepath="obm_buildings_information.py"/>
    <output>
        <param type="dict">building_information</param>
    </output>

</rule>