import { Scope } from "./abstractions";
import { UnaryTransformOp, UnaryTransformOpScoped } from "./transform";
export declare type Predicate2<A> = (prev: A, next: A) => boolean;
export declare function skipDuplicates<A>(fn: Predicate2<A>): UnaryTransformOp<A>;
export declare function skipDuplicates<A>(fn: Predicate2<A>, scope: Scope): UnaryTransformOpScoped<A>;