import type { ReadableSpan, SpanExporter } from '@opentelemetry/sdk-trace-base';
export declare class FileSpanExporter implements SpanExporter {
    constructor();
    export(spans: ReadableSpan[], done: (r: {
        code: number;
    }) => void): void;
    shutdown(): Promise<void>;
    forceFlush(): Promise<void>;
}
export declare function closeFileExporterStreams(): void;
//# sourceMappingURL=file-exporter.d.ts.map