    {# Define variables with double quotes #}
    {% set title = "Jinja Example" %}
    {% set items = ["Apple", "Banana", "Cherry"] %}
    {% set user = {"name": "John", "age": 30, "is_active": true} %}

    {# Conditional statement #}
    {% if user.is_active %}
    User {{ user.name + 'is active' }}
    {% else %}
    User {{ user.name + 'is not active' }}
    {% endif %}

    {# Loop through a list sorted, tested items #}
    {% for item in items if not item is boolean %}
    Fruit: {{ item }}
    {% endfor %}

    {# Using custom and built-in filters with trim options #}
    {{- user.name | upper -}}
    {{+ user.name | length +}}
    {{ user.name | comment_text | upper }}
    {{ user.name | comment_text | length }}
    {# ... also without spaces #}
    {{-user.name|safe-}}
    {# ... and with math #}
    {{user.age - (42 % 0xff) / 3.2 |safe}}

    {# Calling python functions #}
    {{ f.bar(3.14 != f.pi()) }}

    {# Using a block for template inheritance #}
    {% block content scoped required %}
    Default content
    {% endblock %}

    {# Macro with multiline comment and description

      using filter with parameter
    #}
    {% macro format_comments(comments) -%}
    {{ comments | comment_text | join('\n    ') }}
    {% endmacro -%}

    {# Advanced macro using nested branches, member access,
      filters and tests with custom and built-in functions
    #}
    {% macro join_params(operation, default_values = false) %}
    {%   if default_values %}
    {%     set params = operation.parameters | map(attribute='parameter_type_default') | join(', ') %}
    {%   else %}
    {%     set params = operation.parameters | map('parameter_type', default='void') | join(', ') %}
    {%   endif %}
    {%   if operation.zoned is boolean and operation.zoned is zone_valid %}
    {%     if params | length %}
    {%       set params = params + ', const QString &zone' %}
    {%     else %}
    {%       set params = 'const QString &zone' %}
    {%     endif %}
    {%   endif %}
    {{params}}
    {%- endmacro %}