Imprimir todas las variables ramitas
<ol>
{% for key, value in _context %}
<li>{{ key }}</li>
{% endfor %}
</ol>
Lakshay.me
<ol>
{% for key, value in _context %}
<li>{{ key }}</li>
{% endfor %}
</ol>{{ dump(user) }}
{{ my_variable | json_encode(constant('JSON_PRETTY_PRINT')) }}{{ dump(user) }}