--- /dev/null
+/**
+ * Implements hook_language_types_info().
+ */
+function {{ machine_name }}_language_types_info() {
+ return [
+ 'custom_language_type' => [
+ 'name' => t('Custom language'),
+ 'description' => t('A custom language type.'),
+ 'locked' => FALSE,
+ ],
+ 'fixed_custom_language_type' => [
+ 'locked' => TRUE,
+ 'fixed' => ['custom_language_negotiation_method'],
+ ],
+ ];
+}