{#
/**
 * @file
 * Macros.
 */
#}

{# Conditionally render wrapper #}
{% macro maybe_attr(attrs, start = true) %}
  {% apply spaceless %}
    {%- if start -%}
      {%- if attrs.toArray()|length -%}
        <div{{ attrs }}>
      {%- endif -%}
    {%- else -%}
      {%- if attrs.toArray()|length -%}
        </div>
      {%- endif -%}
    {%- endif -%}
  {% endapply %}
{% endmacro %}