export interface ProcessInstance {
    pid: number;
    parent_pid: number;
    start_identity: string | null;
}
export declare function processInstanceMatches(expected: Pick<ProcessInstance, "pid" | "start_identity">, current: Pick<ProcessInstance, "pid" | "start_identity">): boolean;
export declare function processSnapshot(): Promise<ProcessInstance[]>;
export declare function descendantsOf(rootPid: number, snapshot: readonly ProcessInstance[]): ProcessInstance[];
export declare function liveProcessInstances(candidates: readonly ProcessInstance[], snapshot: readonly ProcessInstance[]): ProcessInstance[];
export declare function rootProcessAlive(rootPid: number, rootInstance: ProcessInstance | null, snapshot: readonly ProcessInstance[]): boolean;
export declare function uniqueProcessInstances(instances: readonly ProcessInstance[]): ProcessInstance[];
export declare function processInstanceKey(instance: ProcessInstance): string;