mmerce_order_number`, we can just return the ID.
	 * Returns the parent order number if the order is actually a refund.
	 *
	 * @param  int $order_id Order ID.
	 * @return string
	 */
	protected function get_order_number( $order_id ) {
		$order = wc_get_order( $order_id );

		if ( ! $order instanceof \WC_Order && ! $order instanceof \WC_Order_Refund ) {
			return null;
		}

		if ( 'shop_order_refund' === $order->get_type() ) {
			$order = wc_get_order( $order->get_parent_id() );
		}

		if ( ! has_filter( 'woocommerce_order_number' ) ) {
			return $order->get_id();
		}

		return $order->get_order_number();
	}

	/**
	 * Get the order total with the related currency formatting.
	 * Returns the parent order total if the order is actually a refund.
	 *
	 * @param  int $order_id Order ID.
	 * @return string
	 */
	protected function get_total_formatted( $order_id ) {
		$order = wc_get_order( $order_id );

		if ( ! $order instanceof \WC_Order && ! $order instanceof \WC_Order_Refund ) {
			return null;
		}

		if ( 'shop_order_refund' === $order->get_type() ) {
			$order = wc_get_order( $order->get_parent_id() );
		}

		return wp_strip_all_tags( html_entity_decode( $order->get_formatted_order_total() ), true );
	}

	/**
	 * Prepare a report object for serialization.
	 *
	 * @param stdClass        $report  Report data.
	 * @param WP_REST_Request $request Request object.
	 * @return WP_REST_Response
	 */
	public function prepare_item_for_response( $report, $request ) {
		$data = array(
			'slug'        => $report->slug,
			'description' => $report->description,
			'path'        => $report->path,
		);

		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
		$data    = $this->add_additional_fields_to_object( $data, $request );
		$data    = $this->filter_response_by_context( $data, $context );

		// Wrap the data in a response object.
		$response = rest_ensure_response( $data );
		$response->add_links(
			array(
				'self'       => array(
					'href' => rest_url( $report->path ),
				),
				'report'     => array(
					'href' => $report->url,
				),
				'collection' => array(
					'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
				),
			)
		);

		/**
		 * Filter a report returned from the API.
		 *
		 * Allows modification of the report data right before it is returned.
		 *
		 * @param WP_REST_Response $response The response object.
		 * @param object           $report   The original report object.
		 * @param WP_REST_Request  $request  Request used to generate the response.
		 */
		return apply_filters( 'woocommerce_rest_prepare_report', $response, $report, $request );
	}

	/**
	 * Get the Report's schema, conforming to JSON Schema.
	 *
	 * @return array
	 */
	public function get_item_schema() {
		$schema = array(
			'$schema'    => 'http://json-schema.org/draft-04/schema#',
			'title'      => 'report',
			'type'       => 'object',
			'properties' => array(
				'slug'        => array(
					'description' => __( 'An alphanumeric identifier for the resource.', 'woocommerce' ),
					'type'        => 'string',
					'context'     => array( 'view' ),
					'readonly'    => true,
				),
				'description' => array(
					'description' => __( 'A human-readable description of the resource.', 'woocommerce' ),
					'type'        => 'string',
					'context'     => array( 'view' ),
					'readonly'    => true,
				),
				'path'        => array(
					'description' => __( 'API path.', 'woocommerce' ),
					'type'        => 'string',
					'context'     => array( 'view' ),
					'readonly'    => true,
				),
			),
		);

		return $this->add_additional_fields_schema( $schema );
	}

	/**
	 * Get the query params for collections.
	 *
	 * @return array
	 */
	public function get_collection_params() {
		return array(
			'context' => $this->get_context_param( array( 'default' => 'view' ) ),
		);
	}

	/**
	 * Get order statuses without prefixes.
	 * Includes unregistered statuses that have been marked "actionable".
	 *
	 * @internal
	 * @return array
	 */
	public static function get_order_statuses() {
		// Allow all statuses selected as "actionable" - this may include unregistered statuses.
		// See: https://github.com/woocommerce/woocommerce-admin/issues/5592.
		$actionable_statuses = get_option( 'woocommerce_actionable_order_statuses', array() );

		// See WC_REST_Orders_V2_Controller::get_collection_params() re: any/trash statuses.
		$registered_statuses = array_merge( array( 'any', 'trash' ), array_keys( self::get_order_status_labels() ) );

		// Merge the status arrays (using flip to avoid array_unique()).
		$allowed_statuses = array_keys( array_merge( array_flip( $registered_statuses ), array_flip( $actionable_statuses ) ) );

		return $allowed_statuses;
	}

	/**
	 * Get order statuses (and labels) without prefixes.
	 *
	 * @internal
	 * @return array
	 */
	public static function get_order_status_labels() {
		$order_statuses = array();

		foreach ( wc_get_order_statuses() as $key => $label ) {
			$new_key                    = str_replace( 'wc-', '', $key );
			$order_statuses[ $new_key ] = $label;
		}

		return $order_statuses;
	}
}