fix(types): remove generic from Handler type

- Closes #52

index.d.ts

@@ -5,12 +5,12 @@ type Arrayable<T> = T | T[];
 declare function sade(usage: string, isSingle?: boolean): sade.Sade;
 
 declare namespace sade {
+	export type Handler = (...args: any[]) => any;
 	export type Value = number | string | boolean | null;
-	export type Handler<T extends readonly Value[] = Value[]> = (...args: [...T, mri.Argv]) => any;
 
-	export interface LazyOutput<T extends any[]> {
+	export interface LazyOutput {
 		name: string;
-		handler: Handler<T>;
+		handler: Handler;
 		args: string[];
 	}
 
@@ -21,12 +21,12 @@ declare namespace sade {
 		}): Sade;
 
 		option(flag: string, description?: string, value?: Value): Sade;
-		action<T extends Value[]>(handler: Handler<T>): Sade;
+		action(handler: Handler): Sade;
 		describe(text: Arrayable<string>): Sade;
 		alias(...names: string[]): Sade;
 		example(usage: string): Sade;
 
-		parse<T extends Value[]>(arr: string[], opts: { lazy: true } & mri.Options): LazyOutput<T>;
+		parse(arr: string[], opts: { lazy: true } & mri.Options): LazyOutput;
 		parse(arr: string[], opts?: { lazy?: boolean } & mri.Options): void;
 
 		version(value: string): Sade;