import { DataReceived } from './ObservableQueryConnection';
import { IObservableQueryConnection } from './IObservableQueryConnection';
export declare class NullObservableQueryConnection<TDataType> implements IObservableQueryConnection<TDataType> {
    readonly defaultValue: TDataType;
    constructor(defaultValue: TDataType);
    connect(dataReceived: DataReceived<TDataType>): void;
    disconnect(): void;
}
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