/**
 * How runpane reports a failure, to people and agents alike: `message` says what happened, why
 * (the underlying reason, kept), and what was or was not changed; `next` is the exact step to take.
 * See "How Pane reports errors" in CONTRIBUTING.md.
 */
export interface RunpaneFailure {
    code: string;
    message: string;
    next?: string;
}
export declare class RunpaneError extends Error {
    readonly code: string;
    readonly next?: string | undefined;
    constructor(code: string, message: string, next?: string | undefined);
}
/** Any thrown value as a failure. Errors that carry a string `code` or `next` (Node, daemon, RunpaneError) keep them. */
export declare function describeFailure(cause: unknown): RunpaneFailure;
/** People read stderr; with --json, stdout also carries `{ ok: false, error: { code, message, next } }`. */
export declare function printFailure(cause: unknown, json: boolean): void;
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