import type { StackOptions } from './stack.js';
export interface StackOuterEnd {
    readonly start: boolean;
    readonly end: boolean;
}
export declare function stackOuterEnds(positions: readonly unknown[], values: readonly unknown[], series: readonly unknown[], starts: readonly unknown[], ends: readonly unknown[], options?: Readonly<StackOptions>, fallbackSeries?: 'value' | 'index'): (StackOuterEnd | undefined)[];