{% set classes = textarea.classes %}
{% if attributes.class is not null and textarea.classes is not null %}
    {% set classes = classes|merge(attributes.class) %}
    {% else %}
    {% set classes = attributes.class %}
{% endif %}

<textarea class="c-textarea {{ classes|join(' ') }}" placeholder="{{ input.placeholder | default("Default Text Input Placeholder") }}" {{ attributes }}>{{ value }}</textarea>