old_contents: from __future__ import absolute_import, unicode_literals
  
  __version__ = '2.0.1'
  
  CLIENT_NAME = 'rapidpro-python'
  
new_contents: from __future__ import absolute_import, unicode_literals
  
  __version__ = '2.1.0'
  
  CLIENT_NAME = 'rapidpro-python'
  
subject: Update version number to 2.1.0