import { CommandShape, TestShape } from '@seleniumhq/side-model';
import { PlaybackTree } from './playback-tree';
import { CommandNode } from './playback-tree/command-node';
declare const stack: unique symbol;
export interface Caller {
    position: CommandNode['next'];
    tree: PlaybackTree;
    commands: CommandShape[];
}
export interface CallShape {
    callee: TestShape;
    caller?: Caller;
}
export default class Callstack {
    constructor();
    [stack]: CallShape[];
    get length(): number;
    call(procedure: CallShape): void;
    unwind(): CallShape;
    top(): CallShape;
}
export {};
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