WP_REST_Settings_Controller::get_item( WP_REST_Request $request ): array|WP_Error

79	public function get_item( $request ) {80		$options  = $this->get_registered_options();81		$response = array();82 83		foreach ( $options as $name => $args ) {84			/**85			 * Filters the value of a setting recognized by the REST API.86			 *87			 * Allow hijacking the setting value and overriding the built-in behavior by returning a88			 * non-null value.  The returned value will be presented as the setting value instead.89			 *90			 * @since 4.7.091			 *92			 * @param mixed  $result Value to use for the requested setting. Can be a scalar93			 *                       matching the registered schema for the setting, or null to94			 *                       follow the default get_option() behavior.95			 * @param string $name   Setting name (as shown in REST API responses).96			 * @param array  $args   Arguments passed to register_setting() for this setting.97			 */98			$response[ $name ] = apply_filters( 'rest_pre_get_setting', null, $name, $args );99 100			if ( is_null( $response[ $name ] ) ) {101				// Default to a null value as "null" in the response means "not set".102				$response[ $name ] = get_option( $args['option_name'], $args['schema']['default'] );103			}104 105			/*106			 * Because get_option() is lossy, we have to107			 * cast values to the type they are registered with.108			 */109			$response[ $name ] = $this->prepare_value( $response[ $name ], $args['schema'] );110		}111 112		return $response;113	}