--- /dev/null
+declare module "process" {
+ import * as tty from "tty";
+
+ global {
+ namespace NodeJS {
+ // this namespace merge is here because these are specifically used
+ // as the type for process.stdin, process.stdout, and process.stderr.
+ // they can't live in tty.d.ts because we need to disambiguate the imported name.
+ interface ReadStream extends tty.ReadStream {}
+ interface WriteStream extends tty.WriteStream {}
+ }
+ }
+
+ export = process;
+}