import { TransportConfig } from '../../application/config/LogsInterceptorConfig';
import { LogEntry } from '../../domain/entities/LogEntry';
import { ILogTransport, TransportHealth, TransportMetrics } from '../../domain/interfaces/ILogTransport';
export declare class LokiProtobufTransport implements ILogTransport {
    private readonly config;
    private readonly extraHeaders;
    private client?;
    private workerPool?;
    private root;
    private PushRequest;
    private readonly endpointPath;
    private readonly endpointUrl;
    private readonly timeoutMs;
    private health;
    private metrics;
    constructor(config: TransportConfig, extraHeaders?: Record<string, string>);
    private initProtobuf;
    send(entries: LogEntry[]): Promise<void>;
    private sendRequest;
    private createHttpError;
    private encodeMainThread;
    private groupEntries;
    private formatLabels;
    private escapeLabelValue;
    private getProtobufTimestamp;
    private formatLogLine;
    isAvailable(): Promise<boolean>;
    getHealth(): TransportHealth;
    getMetrics(): TransportMetrics;
    destroy(): Promise<void>;
    private recordSuccess;
    private updateCompressionMetrics;
    private recordFailure;
}
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