@peculiar/json-schema/build/types/helper.d.ts

This package uses ES2015 decorators to simplify JSON schema creation and use

import { JsonPropTypes } from "./prop_types";
import { IJsonConvertible } from "./types";
export declare function checkType(value: any, type: JsonPropTypes): boolean;
export declare function throwIfTypeIsWrong(value: any, type: JsonPropTypes): void;
export declare function isConvertible(target: any): target is IJsonConvertible;