Twig block inheritance?

Question

symfony

there is a blocks.html.twig file
, it defines a couple of dozen blocks for all occasions,
one of them

{% block maplocation_field %}
{% spaceless %}
<div {{ block( 'field_attributes' ) }}>
    {% set defaultWidth = '500px' %}
    {% set defaultHeight = '200px' %}
    {% set defaultShowMap = true %}
    .  .  . еще много строк

I do in my template

{% extends '::blocks.html.twig' %}

{% block maplocation_field %}
{% spaceless %}

you need to redefine only defaultWidth and then so that everything is taken from the parent block
how to do this if possible?
Thanks