hunk.code_window: import unittest
   from streamlit.protobuf.BackMsg_pb2 import WidgetState
   from streamlit.protobuf.BackMsg_pb2 import WidgetStates
   from streamlit.widgets import Widgets
   from streamlit.widgets import coalesce_widget_states
   from streamlit.widgets import reset_widget_triggers
  
hunk.labels: keep keep keep replace keep keep keep keep
hunk.file_path: lib/tests/streamlit/widgets_test.py
hunk.type: replace
file: ARG PYTHON_VERSION
  ARG STREAMLIT_VERSION
  
  FROM streamlit/streamlit:$PYTHON_VERSION-$STREAMLIT_VERSION
  ENV PYTHONUNBUFFERED 1
  
  RUN pip install keras==2.1.4 tensorflow==1.12.0
  RUN mkdir -p /root/.keras/datasets && curl -o /root/.keras/datasets/mnist.npz "https://s3.amazonaws.com/img-datasets/mnist.npz"
  