fix: adjust type of ngtloader

Author: nartc

libs/angular-three/src/lib/loader.ts

@@ -21,7 +21,7 @@ interface NgtLoader {
     <TReturnType, TUrl extends string | string[] | Record<string, string>>(
         loaderConstructorFactory: (inputs: TUrl) => new (...args: any[]) => NgtLoaderResult<TReturnType>,
         input: TUrl | Observable<TUrl>,
-        extensions?: NgtLoaderExtensions,
+        extensions?: NgtLoaderExtensions<NgtLoaderResult<TReturnType>>,
         onProgress?: (event: ProgressEvent) => void
     ): Observable<
         TUrl extends string[]

libs/angular-three/src/lib/types.ts

@@ -352,8 +352,8 @@ export interface NgtLoaderProto<T> extends THREE.Loader {
     ): unknown;
 }
 
-export interface NgtLoaderExtensions {
-    (loader: THREE.Loader): void;
+export interface NgtLoaderExtensions<TLoader extends THREE.Loader = THREE.Loader> {
+    (loader: TLoader): void;
 }
 
 export type NgtLoaderResult<T> = T extends any[] ? NgtLoaderProto<T[number]> : NgtLoaderProto<T>;