{% macro attributes(attributes) %}
    {% for name, value in attributes %}
        {%- if value is not none and value is not same as(false) -%}
            {{- ' %s="%s"'|format(name, value is same as(true) ? name|e : value|e)|raw -}}
        {%- endif -%}
    {%- endfor -%}
{% endmacro %}