import { CounterRecord, EventRecord, HistogramRecord, HistogramStats, IDiagnosticsStorage, ILogger, ReactNativeStorageData, Storage, TagRecord } from '@amplitude/analytics-core';
/**
 * Diagnostics storage for React Native, backed by the storage configured on the client.
 *
 * The blob is held in memory and persisted to a single storage key. Keeping memory as the source
 * of truth avoids read-modify-write races when the injected storage has no transactions. One key
 * also means one write per save tick instead of one per data type.
 *
 * When no storage is configured this degrades to memory-only — diagnostics still accumulate and
 * flush for the life of the app, and are lost on app kill. Nothing here throws on that path.
 */
export declare class ReactNativeDiagnosticsStorage implements IDiagnosticsStorage {
    private readonly storage?;
    readonly storageKey: string;
    private readonly logger;
    private blob;
    private readonly ready;
    /** Serializes writes so concurrent callers can't clobber each other's snapshot of the blob. */
    private writeQueue;
    constructor(apiKey: string, logger: ILogger, storage?: Storage<ReactNativeStorageData> | undefined);
    private hydrate;
    private persist;
    setTags(tags: Record<string, string>): Promise<void>;
    incrementCounters(counters: Record<string, number>): Promise<void>;
    setHistogramStats(histogramStats: Record<string, HistogramStats>): Promise<void>;
    addEventRecords(events: Array<{
        event_name: string;
        time: number;
        event_properties: Record<string, any>;
    }>): Promise<void>;
    setLastFlushTimestamp(timestamp: number): Promise<void>;
    getLastFlushTimestamp(): Promise<number | undefined>;
    getAllAndClear(): Promise<{
        tags: TagRecord[];
        counters: CounterRecord[];
        histogramStats: HistogramRecord[];
        events: EventRecord[];
    }>;
}
//# sourceMappingURL=diagnostics-storage.d.ts.map