import type { SourceConfig, SourceState } from "../types.js";
export declare function atomicJson(path: string, value: unknown): Promise<void>;
export declare function readJson<T>(path: string): Promise<T | undefined>;
export declare function loadState(root: string): Promise<SourceState>;
export declare function saveState(root: string, state: SourceState): Promise<void>;
export declare function supervisorLease(root: string): Promise<() => Promise<void>>;
export declare function reserveCall(root: string, state: SourceState, config: SourceConfig): Promise<void>;