MkLHX

/* Command strings */
#define GET_CAN_EXPAND  "raspi-config nonint get_can_expand"
#define EXPAND_FS       "raspi-config nonint do_expand_rootfs"
#define GET_HOSTNAME    "raspi-config nonint get_hostname"
#define SET_HOSTNAME    "raspi-config nonint do_hostname %s"
#define GET_BOOT_CLI    "raspi-config nonint get_boot_cli"
#define GET_AUTOLOGIN   "raspi-config nonint get_autologin"
#define SET_BOOT_CLI    "raspi-config nonint do_boot_behaviour B1"
#define SET_BOOT_CLIA   "raspi-config nonint do_boot_behaviour B2"
#define SET_BOOT_GUI    "raspi-config nonint do_boot_behaviour B3"

MkLHX

{% set contents = {"one": 1,"two":2,"three":3,"four":4,"five":5} %}
{# Create the array an structure somewhere in the view #}
{% set twigArray = {} %}
{% for content in contents %}
    {% set twigArray = twigArray|merge({('hashkey_'~loop.index0):{'enabled':true,'caption':'unknow','button':{'text':'unknow','href':'unknow'},'image':{'src': content.content|raw),'alt':"image-"~loop.index, 'href':"" }}}) %}
{% endfor %}
{{ dump(twigArray)}}

{# For any reason you need to update a specific key value in the exiting array in the view 
call the twig extension to do that in php side #}