function keysimport { keys } from "https://deno.land/x/rambda@9.2.1/index.d.ts"; keys<T extends object>(x: T): (keyof T & string)[]It applies Object.keys over x and returns its keys. keys<T>(x: T): string[]It applies Object.keys over x and returns its keys. Type ParametersT extends objectParametersx: TReturns(keyof T & string)[]Type ParametersTParametersx: TReturnsstring[]