WP_REST_Meta_Fields::prepare_value( mixed $value, WP_REST_Request $request, array $args ): mixed

556	public static function prepare_value( $value, $request, $args ) {557		if ( $args['single'] ) {558			$schema = $args['schema'];559		} else {560			$schema = $args['schema']['items'];561		}562 563		if ( '' === $value && in_array( $schema['type'], array( 'boolean', 'integer', 'number' ), true ) ) {564			$value = static::get_empty_value_for_type( $schema['type'] );565		}566 567		if ( is_wp_error( rest_validate_value_from_schema( $value, $schema ) ) ) {568			return null;569		}570 571		return rest_sanitize_value_from_schema( $value, $schema );572	}