public static function llms_update_access_plans( $request ) {

		if ( empty( $request['plans'] ) || ! is_array( $request['plans'] ) || empty( $request['post_id'] ) ) {
			return new WP_Error( 'error', __( 'Missing Required Parameters.', 'lifterlms' ) );
		}

		$metabox       = new LLMS_Meta_Box_Product();
		$post_id       = absint( $request['post_id'] );
		$metabox->post = get_post( $post_id );

		$errors = array();

		foreach ( $request['plans'] as $raw_plan_data ) {

			if ( empty( $raw_plan_data ) ) {
				continue;
			}

			$raw_plan_data = wp_unslash( $raw_plan_data );

			// Ensure we can switch plans that used to be paid to free.
			if ( isset( $raw_plan_data['is_free'] ) && llms_parse_bool( $raw_plan_data['is_free'] ) && ! isset( $raw_plan_data['price'] ) ) {
				$raw_plan_data['price'] = 0;
			}

			$raw_plan_data['product_id'] = $post_id;

			// retained filter for backwards compat.
			$raw_plan_data = apply_filters( 'llms_access_before_save_plan', $raw_plan_data, $metabox );

			$plan = llms_insert_access_plan( $raw_plan_data );
			if ( is_wp_error( $plan ) ) {
				$errors[ $raw_plan_data['menu_order'] ] = $plan;
			} else {
				// retained hook for backwards compat.
				do_action( 'llms_access_plan_saved', $plan, $raw_plan_data, $metabox );
			}
		}

		return array(
			'errors' => $errors,
			'html'   => $metabox->get_html(),
		);

	}