import { TsQueueMember, TsQueuePullOptions, TsQueuePullResult } from "../models/TsQueueModels";
/**
 * 	Time Series Queue
 */
export interface ITsQueue {
    /**
     * 	basic methods
     */
    enqueue(channel: string, timestamp: number, data: object): Promise<number>;
    dequeue(channel: string): Promise<TsQueueMember | null>;
    front(channel: string): Promise<TsQueueMember | null>;
    peek(channel: string, timestamp?: number): Promise<TsQueueMember | null>;
    size(channel: string): Promise<number>;
    delete(channel: string, timestamp: number): Promise<number>;
    clear(channel: string): Promise<number>;
    /**
     * 	extended methods
     */
    push(channel: string, timestamp: number, data: object): Promise<number>;
    pull(channel: string, startTimestamp: number, endTimestamp: number, options?: TsQueuePullOptions): Promise<TsQueuePullResult>;
    removeFromHead(channel: string, endTimestamp: number): Promise<number>;
    remove(channel: string, startTimestamp: number, endTimestamp: number): Promise<number>;
}
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