class Subaccounts extends Baseimport { Subaccounts } from "https://deno.land/x/sparkpost@0.1.1/subaccounts.ts"; Methodscreate(subaccount: any)Create a new subaccount get(id: string)Get details about a specified subaccount by its id list()List a summary of all subaccounts update(id: string, subaccount: any)Update existing subaccount by id