{% if content.fields['image'] is defined and not ibexa_field_is_empty( content, 'image' ) %}
{% set img_content_id = ibexa_field_value(content,"image").destinationContentId %}
{% elseif content.fields['slider'] is defined and not ibexa_field_is_empty( content, 'slider' ) %}
{% set img_content_id = ibexa_field_value(content,"slider").destinationContentIds[0] %}
{% elseif content.fields['image_list'] is defined and not ibexa_field_is_empty( content, 'image_list' ) %}
{% set img_content_id = ibexa_field_value(content,"image_list").destinationContentIds[0] %}
{% endif %}