/// <reference types="node" />
import Long from 'long';
import { LogicalOffset, LogicalLiteralOffset } from '../offsets';
export interface AssignmentContext {
    topic: string;
    partition: number;
    group: string;
    caughtUp(offset: string | Long): Promise<boolean>;
    commitOffset(newOffset: string | Long, metadata: string | null): Promise<void>;
    committed(): Promise<OffsetAndMetadata>;
    isEmpty(): Promise<boolean>;
    log(tags: any, payload: any): any;
    seek(offset: string | Long | LogicalOffset | LogicalLiteralOffset): Promise<void>;
    send(messages: NewMessage | NewMessage[]): Promise<ProducedMessageMetadata[]>;
    watermarks(): Promise<Watermarks>;
}
export interface OffsetAndMetadata {
    offset: string;
    metadata: string | null;
}
export interface NewMessage {
    topic: string;
    value: Buffer | string | null;
    partition?: number;
    key?: Buffer | string | null;
    timestamp?: string;
    headers?: {
        [key: string]: Buffer | string;
    };
}
export interface ProducedMessageMetadata {
    topicName: string;
    partition: number;
    errorCode: number;
    offset?: string;
    timestamp?: string;
    baseOffset?: string;
    logAppendTime?: string;
    logStartOffset?: string;
}
export interface Watermarks {
    highOffset: string;
    lowOffset: string;
}