{% macro one() %}
  This is macro "one"
{% endmacro %}

{% macro two() %}
  This is macro "two"
{% endmacro %}

{% macro three() %}
  This is macro "three"
{% endmacro %}

{% macro four(name="four") %}
  This is macro "{{ name }}"
{% endmacro %}

{% macro hello(name="friend") %}
  Hello, {{ name }}!
{% endmacro %}