<register type="avalon" variable-name="allowedUsersFirstValidation">
            <arg name="role">org.ametys.plugins.bpm.workflowsdef.RegisterVariable</arg>
            <arg name="type">user</arg>
            <arg name="multiple">true</arg>
            <arg name="variableId">allowedRepresentatives</arg>
            <arg name="label">plugin.default-bmp-workflow:WORKFLOW_BPM_ALLOWED_REPRESENTATIVES</arg>
            <arg name="description">plugin.default-bmp-workflow:WORKFLOW_BPM_ALLOWED_REPRESENTATIVES_DESC</arg>
        </register>