import { StackFrame } from './types';
export declare function getNodeFs(): Promise<typeof import('fs') | undefined>;
export declare function getNodeReadline(): Promise<typeof import('readline') | undefined>;
export declare const MAX_CONTEXTLINES_COLNO: number;
export declare const MAX_CONTEXTLINES_LINENO: number;
export declare function addSourceContext(frames: StackFrame[]): Promise<StackFrame[]>;