import type { TracingConfig } from './config.js';
import type { TraceRecord } from './types.js';
export declare class LocalTraceStore {
    private worker?;
    private sequence;
    private requests;
    private pendingBytes;
    private epoch;
    private epochReady;
    dropped: number;
    lastError?: string;
    constructor(config: TracingConfig, file?: string);
    private fail;
    request(op: string, data?: unknown): Promise<any>;
    begin(record: TraceRecord): Promise<number>;
    write(record: TraceRecord, epoch?: number): Promise<void>;
    clear(): Promise<void>;
    flush(): Promise<void>;
    close(): Promise<void>;
}