import { JsonSchemaRootNode } from '@devexpress/analytics-core/analytics-data';
import { ISerializationInfoArray, ModelSerializer } from '@devexpress/analytics-core/analytics-utils';
import * as ko from 'knockout';
import { DataSource } from './data-source';
export declare class JsonDataSource extends DataSource {
    rootElement: ko.Observable<string>;
    schema: ko.Observable<JsonSchemaRootNode>;
    get _isFederationDataProvider(): boolean;
    constructor(dataSourceJSON?: any, serializer?: ModelSerializer);
    getInfo(): ISerializationInfoArray;
    getDisplayNamePrefix(): string;
    protected _getDefaultItemType(): string;
}