From 96a9fe33093fd75f1894914fa7efc0da63a8e036 Mon Sep 17 00:00:00 2001
From: Patrick Loeber <98830383+ploeber@users.noreply.github.com>
Date: Mon, 16 Sep 2024 12:24:45 +0200
Subject: [PATCH] Fix mypy error

---
 assemblyai/extras.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/assemblyai/extras.py b/assemblyai/extras.py
index a0dea27..5086b70 100644
--- a/assemblyai/extras.py
+++ b/assemblyai/extras.py
@@ -1,5 +1,5 @@
 import time
-from typing import BinaryIO, Generator
+from typing import BinaryIO, Generator, Optional
 from warnings import warn
 
 from . import api
@@ -22,7 +22,7 @@ def __init__(
 
 
 class MicrophoneStream:
-    def __init__(self, sample_rate: int = 44_100, device_index: int = None):
+    def __init__(self, sample_rate: int = 44_100, device_index: Optional[int] = None):
         """
         Creates a stream of audio from the microphone.