import { HttpClient, HttpParams } from '@angular/common/http';
import { Observable } from 'rxjs';
/**
 * Query object for getting typed data.
 * @export
 * @class Query
 * @template T type (usually an interface) of the data coming back
 */
export declare class Query<T> {
    private http;
    private name;
    constructor(http: HttpClient, name: string);
    readonly streamParamKey = "stream";
    readonly defaultStreamName = "Default";
    readonly allStreams = "*";
    /**
     * will retrieve a 2sxc query
     * remember to set the permissions on the query, so it can be accessed by the group you want
     */
    get(params?: HttpParams, streams?: string | string[]): Observable<T>;
    /**
     * Returns either the existing or a new HttpParams object, with the stream parameter appended.
     * @param params the HttpParams which might be undefined or null
     * @param streams the array of streams which will be appended to the HttpParams object
     */
    private setStreamParam;
}