feat: Add possibility to overwrite Endpoint types with custom impleme…

…ntation, if function is returned

src/types/api-handler.ts

@@ -99,19 +99,23 @@ export declare type Endpoint<
 // Setting 'unknown here lets us infer typings for non-predefined endpoints with dynamically set generic response data
 type EndpointDefaults = Endpoint<DefaultResponse>;
 
+type AFunction = (...args: any[]) => any;
+
 /**
  * Maps the method names from `EndpointsMethods` to their corresponding `Endpoint` type definitions.
  *
  * @template EndpointsMethods - The object containing endpoint method definitions.
  */
 type EndpointsRecord<EndpointsMethods> = {
- [K in keyof EndpointsMethods]: EndpointsMethods[K] extends Endpoint<
- infer ResponseData,
- infer QueryParams,
- infer UrlPathParams
- >
- ? Endpoint<ResponseData, QueryParams, UrlPathParams> // Method exists in a provided interface
- : EndpointDefaults; // Method is not defined. Provide defaults
+ [K in keyof EndpointsMethods]: EndpointsMethods[K] extends AFunction
+ ? EndpointsMethods[K] // Map function signatures directly
+ : EndpointsMethods[K] extends Endpoint<
+ infer ResponseData,
+ infer QueryParams,
+ infer UrlPathParams
+ >
+ ? Endpoint<ResponseData, QueryParams, UrlPathParams> // Method is an Endpoint type
+ : EndpointDefaults; // Fallback to default Endpoint type
 };
 
 /**