woothemes / woocommerce

		$valid_window = 15 * 60; // 15 minute window.

		if ( ( $timestamp < time() - $valid_window ) || ( $timestamp > time() + $valid_window ) ) {

			return new WP_Error( 'woocommerce_rest_authentication_error', __( 'Invalid timestamp.', 'woocommerce' ), array( 'status' => 401 ) );

		}

		$used_nonces = maybe_unserialize( $user->nonces );

		);

		// Checks for errors.

		if ( false === $update ) {

			return new WP_Error( 'woocommerce_rest_cannot_edit', __( 'Could not edit the attribute', 'woocommerce' ), array( 'status' => 400 ) );

		}

		$attribute = $this->get_attribute( $id );

			array( '%d' )

		);

		if ( false === $deleted ) {

			return new WP_Error( 'woocommerce_rest_cannot_delete', __( 'The resource cannot be deleted.', 'woocommerce' ), array( 'status' => 500 ) );

		}

		$taxonomy = wc_attribute_taxonomy_name( $attribute->attribute_name );