old_contents: """Setup script for object_detection."""
  
  from setuptools import find_packages
  from setuptools import setup
  
  
  REQUIRED_PACKAGES = ['Pillow>=1.0']
  
  setup(
      name='object_detection',
      version='0.1',
      install_requires=REQUIRED_PACKAGES,
      include_package_data=True,
      packages=[p for p in find_packages() if p.startswith('object_detection')],
      description='Tensorflow Object Detection Library',
  )
  
new_contents: """Setup script for object_detection."""
  
  from setuptools import find_packages
  from setuptools import setup
  
  
  REQUIRED_PACKAGES = ['Pillow>=1.0', 'Matplotlib>=2.1', 'Cython>=0.28.1']
  
  setup(
      name='object_detection',
      version='0.1',
      install_requires=REQUIRED_PACKAGES,
      include_package_data=True,
      packages=[p for p in find_packages() if p.startswith('object_detection')],
      description='Tensorflow Object Detection Library',
  )
  
subject: Add required packages which are missing. (#4087)