jinja macro import
# This is how you define the macro
# This is in the file "Input_Block"
{% macro input(name, value='', type='text', size=20) -%}
<input type="{{ type }}" name="{{ name }}" value="{{
value|e }}" size="{{ size }}">
{%- endmacro %}
# Import from the file and set a contextual name
{% import 'Input_Block' as emailBlock %}
{{ emailBlock.input("user input") }}