{% set spinner = spinner ?? false -%}
{% set label = label ?? null %}
{% set attributes = {
    type: type ?? 'button',
    id: id ?? false,
    class: (class ?? [])|explodeClass|merge([
        'btn',
        not label ? 'btn-empty' : null,
    ]|filter),
}|merge(attributes ?? {}) -%}

{% apply spaceless %}
    {% tag 'button' with attributes %}
        {{ label ? tag('div', {
            class: 'label',
            text: label,
        }) }}
        {% if spinner %}
            <div class="spinner spinner-absolute"></div>
        {% endif %}
    {% endtag %}
{% endapply -%}