safe model saving

api_client.py

@@ -1,5 +1,6 @@
 import io
 import json
+import os
 from http import HTTPStatus
 from os import path
 
@@ -120,6 +121,8 @@ class ApiClient:
         part_big = resource_encrypted[part_small_size:]
 
         self.cdn_manager.upload(constants.MODELS_FOLDER, big_part_name, part_big)
+
+        os.makedirs(folder, exist_ok=True)
         with open(path.join(folder, big_part_name), 'wb') as f:
             f.write(part_big)
         self.upload_file(small_part_name, part_small, constants.MODELS_FOLDER)