_includes/snippets/get-string-from-locale-config.html

{%- include snippets/get-lang.html -%}
{%- assign _lang = __return -%}
{%- if include.locale[_lang] -%}
  {%- assign __return = include.locale[_lang] -%}
{%- else -%}
  {%- assign __return = include.locale.en -%}
{%- endif -%}