import type { Address } from '@solana/kit';
export interface LeaderInfo {
    readonly identity: Address;
    readonly tpuQuicAddr: string | null;
    readonly stake?: bigint;
}
export interface RouteSnapshot {
    readonly asOfSlot: bigint;
    readonly leaders: readonly LeaderInfo[];
    readonly generation: number;
}
export declare function makeSnapshot(asOfSlot: bigint, leaders: readonly LeaderInfo[], generation: number): RouteSnapshot;
/** Single-writer / multi-reader atomic reference. JS single-threaded runtime = pointer store is atomic. */
export declare class AtomicSnapshotRef {
    #private;
    constructor(initial: RouteSnapshot);
    load(): RouteSnapshot;
    store(next: RouteSnapshot): void;
}
export declare const EMPTY_SNAPSHOT: RouteSnapshot;
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