import { Set } from "immutable";
import { TSType } from "@babel/types";
export declare const MaybeType: (type: TSType) => TSType;
export declare const PartialType: (type: TSType) => TSType;
export declare const IfType: (possibleTypes: Set<string>, type: TSType) => TSType;
export declare const OptionalType: (type: TSType) => TSType;
export declare const OperationType: (type: TSType) => TSType;
export declare const ByIdType: (type: TSType) => TSType;