fix package import

Keras_Tensorflow/04_DeployOnAKS.ipynb

@@ -32,6 +32,8 @@
     "import numpy as np\n",
     "from testing_utilities import to_img, img_url_to_json, plot_predictions\n",
     "import requests\n",
+    "import json\n",
+    "import subprocess\n",
     "from azureml.core import Workspace\n",
     "from azureml.core.compute import AksCompute, ComputeTarget\n",
     "from azureml.core.webservice import Webservice, AksWebservice\n",