import { Buffer } from "buffer";
import { APIError } from "./APIError";
import { HttpClient } from "./http/HttpClient";
import { LabelMap } from "./Record";
type RecordBatchItem = {
    entry: string;
    timestamp: bigint;
    data: Buffer;
    contentType: string;
    labels: LabelMap;
};
export declare enum RecordBatchType {
    WRITE = 0,
    UPDATE = 1,
    REMOVE = 2
}
/**
 * Batch of records to write them in one request (batch protocol v2).
 */
export declare class RecordBatch {
    private readonly bucketName;
    private readonly httpClient;
    private readonly type;
    private readonly records;
    private totalSize;
    private lastAccess;
    constructor(bucketName: string, httpClient: HttpClient, type: RecordBatchType);
    /**
     * Add record to batch with entry name.
     * @param entry name of entry
     * @param ts timestamp of record as a UNIX timestamp in microseconds
     * @param data {Buffer | string} data to write
     * @param contentType default: application/octet-stream
     * @param labels default: {}
     */
    add(entry: string, ts: bigint, data: Buffer | string, contentType?: string, labels?: LabelMap): void;
    /**
     * Add labels to batch for update.
     * @param entry name of entry
     * @param ts timestamp of record as a UNIX timestamp in microseconds
     * @param labels labels to update
     */
    addOnlyLabels(entry: string, ts: bigint, labels: LabelMap): void;
    /**
     * Add timestamps to batch for removal.
     * @param entry name of entry
     * @param ts timestamp of record as a UNIX timestamp in microseconds
     */
    addOnlyTimestamp(entry: string, ts: bigint): void;
    /**
     * Send batch request (Multi-entry API).
     */
    send(): Promise<Map<string, Map<bigint, APIError>>>;
    /**
     * Get records in batch sorted by timestamp and entry name.
     */
    items(): Array<[[string, bigint], RecordBatchItem]>;
    /**
     * Get total size of batch
     */
    size(): bigint;
    /**
     * Get last access time of batch
     */
    lastAccessTime(): number;
    /**
     * Get number of records in batch
     */
    recordCount(): number;
    /**
     * Clear batch
     */
    clear(): void;
}
export {};