/** Fixed refusal codes: no reference, callback failure, payload or signal reason is echoed. */
export type ArtifactDetailErrorCode = 'ERR_ARTIFACT_DETAIL_INVALID' | 'ERR_ARTIFACT_DETAIL_UNAVAILABLE' | 'ERR_ARTIFACT_DETAIL_CANCELLED';
/** A bounded detail request was malformed, could not be admitted, or was cancelled. */
export declare class ArtifactDetailError extends Error {
    readonly code: ArtifactDetailErrorCode;
    constructor(code: ArtifactDetailErrorCode);
}
export declare function invalidDetail(): never;
export declare function unavailableDetail(): never;
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