First concept

node_modules/next/dist/server/future/route-definitions/route-definition.d.ts

@@ -0,0 +1,16 @@
+import type { RouteKind } from '../route-kind';
+export interface RouteDefinition<K extends RouteKind = RouteKind> {
+    readonly kind: K;
+    readonly bundlePath: string;
+    readonly filename: string;
+    /**
+     * Describes the pathname including all internal modifiers such as
+     * intercepting routes, parallel routes and route/page suffixes that are not
+     * part of the pathname.
+     */
+    readonly page: string;
+    /**
+     * The pathname (including dynamic placeholders) for a route to resolve.
+     */
+    readonly pathname: string;
+}