fix: Slightly better stream type

deno.json

@@ -1,6 +1,6 @@
 {
   "name": "@denosaurs/tty",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "exports": {
     ".": "./mod.ts"
   }

is_interactive.ts

@@ -1,5 +1,5 @@
 export async function isInteractiveAsync(
-  stream: { isTerminal(): boolean },
+  stream: Pick<typeof Deno.stdout, "isTerminal">,
 ): Promise<boolean> {
   if (await Deno.permissions.query({ name: "env" })) {
     return (
@@ -11,6 +11,8 @@ export async function isInteractiveAsync(
   return stream.isTerminal();
 }
 
-export function isInteractive(stream: { isTerminal(): boolean }): boolean {
+export function isInteractive(
+  stream: Pick<typeof Deno.stdout, "isTerminal">,
+): boolean {
   return stream.isTerminal();
 }

mod.ts

@@ -32,8 +32,8 @@ export const PREV_LINE = "1F";
 export const COLUMN = "1G"; // left?
 export const HOME = "H";
 
-export type SyncStream = Pick<typeof Deno.stdout, "writeSync">;
-export type AsyncStream = Pick<typeof Deno.stdout, "write">;
+export type SyncStream = Pick<typeof Deno.stdout, "writeSync" | "isTerminal">;
+export type AsyncStream = Pick<typeof Deno.stdout, "write" | "isTerminal">;
 
 export * from "./tty_async.ts";
 export * from "./tty_sync.ts";