<f:spaceless>
    <v:variable.set name="programsReduced" value="{v:iterator.filter(subject: {})}"></v:variable.set>

    <f:for each="{programs}" as="program" iteration="i">
        <v:variable.set name="imageUrl" value="{v:uri.image(src: program.presenter.image.uid, treatIdAsReference: 1, relative: 0, maxW: 1000, quality:92, format:'webp')}" />

        <v:variable.set name="programReduced" value="{
            uid: program.uid,
            sustainable: program.sustainable,
            title: program.title,
            imageUrl: imageUrl
        }" />
        <v:variable.set name="programsReduced">{programsReduced -> v:iterator.push(add: programReduced, key: i.index)}</v:variable.set>
    </f:for>

    {programsReduced -> v:format.json.encode()}
</f:spaceless>