{% macro qux(amount=1) %}
    {% if amount == 1 -%}
        I am qux.
    {%- elif amount > 1 -%}
        We are quxs.
    {%- endif %}
{% endmacro %}

{% macro static_file(type, filename_or_url, local=True) %}
    {% if local -%}
        {% set filename_or_url = url_for('static', filename=filename_or_url) %}
    {%- endif %}
    {% if type == 'css' -%}
        <link rel="stylesheet" href="{{ filename_or_url }}" type="text/css">
    {%- elif type == 'js' -%}
        <script type="text/javascript" src="{{ filename_or_url }}"></script>
    {%- elif type == 'icon' -%}
        <link rel="icon" href="{{ filename_or_url }}">
    {%- endif %}
{% endmacro %}