export type Confirm = (prompt: string, defaultYes: boolean) => Promise<boolean>;
/** Reads one line from stdin. Anything that is not an explicit answer takes the default. */
export declare function stdinConfirm(input?: NodeJS.ReadableStream, output?: NodeJS.WritableStream): Confirm;
/** Reads one free-text line. An empty answer takes the offered default. */
export type Ask = (prompt: string, fallback: string) => Promise<string>;
export declare function stdinAsk(input?: NodeJS.ReadableStream, output?: NodeJS.WritableStream): Ask;
export declare function interpretAnswer(answer: string, defaultYes: boolean): boolean;