add token for downloading gated model.

tts.py

@@ -15,12 +15,25 @@ from huggingface_hub import hf_hub_download, hf_hub_url
 from tqdm import tqdm
 
 
-def download_file_with_progress(url: str, destination: str):
+def download_file_with_progress(url: str, destination: str, token: str = None):
     """
-    Downloads a file from a web URL with a progress bar.
+    Downloads a file from a web URL with a progress bar. Supports Hugging Face API token for gated models.
+
+    :param url: The URL to download from.
+    :param destination: The destination file path to save the downloaded file.
+    :param token: Hugging Face API token (optional). If not provided, the HF_API_TOKEN from the environment will be used.
     """
-    # Streaming GET request
-    response = requests.get(url, stream=True)
+    # Use the token passed or fetch from environment variable
+    if token is None:
+        token = os.getenv("HF_TOKEN")
+
+    # Define headers for the request
+    headers = {}
+    if token:
+        headers['Authorization'] = f'Bearer {token}'
+
+    # Streaming GET request with headers
+    response = requests.get(url, stream=True, headers=headers)
 
     # Total size in bytes, set to zero if missing
     total_size = int(response.headers.get('content-length', 0))