/**
 * Small bounded read-after-write helper for EasyEDA bridge observations.
 * EasyEDA can publish a freshly-created primitive one bridge tick later, so
 * one empty read is not sufficient evidence that a design is empty.
 */
export interface StableReadOptions<T = unknown> {
    attempts?: number;
    delayMs?: number;
    fingerprint?: (value: T) => string;
}
export interface StableReadResult<T> {
    value: T;
    attempts: number;
    stable: boolean;
}
export declare function readStable<T>(reader: () => Promise<T>, options?: StableReadOptions<T>): Promise<StableReadResult<T>>;