{% set collection = (collection is defined) ? collection : 'blocks' %}
{% set element = (element is defined) ? element : 'main' %}
{% set blocks = (blocks is defined) ? blocks : content[collection] %}

<{{ element }} property='{{ collection }}' typeof='collection'>
{% for index,block in blocks %}
    {% include '@ConnectHollandSuluBlock/html5/'~block.type~'.html.twig'
        with {
            block: block,
            rel: collection,
            blockview: view[collection][index]
        }
    %}
{% endfor %}
</{{ element }}>

{% set collection = (collection is defined) ? collection : 'blocks' %}
{% set element = (element is defined) ? element : 'main' %}
{% set blocks = (blocks is defined) ? blocks : content[collection] %}

{%  block block_collection %}
<{{ element }} property='{{ collection }}' typeof='collection'>
{%  block block_collection_content %}
    {% for index,block in blocks %}
        {% include '@ConnectHollandSuluBlock/html5/'~block.type~'.html.twig'
            with {
                block: block,
                rel: collection,
                blockview: view[collection][index]
            }
        %}
    {% endfor %}
{%  endblock %}
</{{ element }}>
{%  endblock %}

Add twig block for collections
Add twig block for collections

By adding this content is easier prepended and attached.
