drupalcampbristol/vendor/chi-teck/drupal-code-generator/templates/d8/hook/install.twig

/**
 * Implements hook_install().
 */
function {{ machine_name }}_install() {
  // Create the styles directory and ensure it's writable.
  $directory = file_default_scheme() . '://styles';
  file_prepare_directory($directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
}