import { Observable } from '../Observable'; import { Falsy, OperatorFunction } from '../types'; export declare function findIndex(predicate: BooleanConstructor, thisArg?: any): OperatorFunction; export declare function findIndex(predicate: (this: A, value: T, index: number, source: Observable) => boolean, thisArg: A): OperatorFunction; export declare function findIndex(predicate: (value: T, index: number, source: Observable) => boolean): OperatorFunction; //# sourceMappingURL=findIndex.d.ts.map