import type { InitializedToInitializedOperator, ToBaseOperator } from '../types';
export declare const distinctUntilChanged: <A>(eq?: (x: A, y: A) => boolean) => ToBaseOperator<A, A>;
export declare const distinctUntilChangedI: <A>(eq?: (x: A, y: A) => boolean) => InitializedToInitializedOperator<A, A>;
export declare const skipUnchanged: <A>(eq?: (x: A, y: A) => boolean) => ToBaseOperator<A, A>;
export declare const skipUnchangedI: <A>(eq?: (x: A, y: A) => boolean) => InitializedToInitializedOperator<A, A>;