/// <reference types="node" resolution-mode="require"/>
export type PromptInput = {
    stream: NodeJS.ReadableStream;
    close: () => void;
};
export declare function openPromptInput(): PromptInput | undefined;
/**
 * Asks a single question on the controlling terminal. Prompts are written to
 * stderr so that piping stdout to `jq` keeps working.
 */
export declare function askQuestion(input: NodeJS.ReadableStream, question: string): Promise<string | undefined>;
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