What I want to do is get variables stored in form view.
{% form_theme edit_form _self %}
{% block field_widget %}
{% spaceless %}
{% set type = type|default
For example, we want to render the value from a type text field called primerNombre we will need
{{ form.vars.value.primerNombre }}
If we wanted to render the name of one of the children we will need
{% for hijo in form.hijos %}
{{ form_widget(hijo.vars.value.primerNombre) }}
{% endfor %}
Good luck!