import { OperatorFunction } from '../../internal/types'; import { ObservableInput } from '../types'; export declare function mergeMapTo<T>(innerObservable: ObservableInput<T>, concurrent?: number): OperatorFunction<any, T>; /** @deprecated */ export declare function mergeMapTo<T, I, R>(innerObservable: ObservableInput<I>, resultSelector: (outerValue: T, innerValue: I, outerIndex: number, innerIndex: number) => R, concurrent?: number): OperatorFunction<T, R>;