Tagged types for JSON.stringify and JSON.parse. Extended from: https://github.com/Microsoft/TypeScript/issues/19244

global.d.ts

class Stringified<T> {
    private ___stringified: T
}

interface JSON {
    stringify(
        value: any,
        replacer?: (key: string, value: any) => any,
        space?: string | number
    ): string
    stringify<T>(
        value: T,
        replacer?: (key: string, value: any) => any,
        space?: string | number
    ): string & Stringified<T>
    parse(text: string, reviver?: (key: any, value: any) => any): any
    parse<T>(text: Stringified<T>, reviver?: (key: any, value: any) => any): T
}