import { HomeAssistant } from '../home-assistant';
export type HistoryStates = Record<string, EntityHistoryState[]>;
export interface EntityHistoryState {
    /** state */
    s: string;
    /** attributes */
    a: Record<string, any>;
    /** last_changed; if set, also applies to lu */
    lc?: number;
    /** last_updated */
    lu: number;
}
export interface HistoryStreamMessage {
    states: HistoryStates;
    start_time?: number;
    end_time?: number;
}
export declare const entityIdHistoryNeedsAttributes: (hass: HomeAssistant, entityId: string) => boolean;
export declare const fetchDateWS: (hass: HomeAssistant, startTime: Date, endTime: Date, entityIds: string[]) => Promise<HistoryStates>;
export declare const subscribeHistoryStatesTimeWindow: (hass: HomeAssistant, callbackFunction: (data: HistoryStates) => void, hoursToShow: number, entityIds: string[], noAttributes?: boolean, minimalResponse?: boolean, significantChangesOnly?: boolean) => Promise<() => Promise<void>>;
export declare const subscribeHistory: (hass: HomeAssistant, callbackFunction: (data: HistoryStates) => void, startTime: Date, endTime: Date, entityIds: string[]) => Promise<() => Promise<void>>;