old_contents: # Current version of the library
  __version__ = '0.5.0-alpha.2'
  
  def get_version():
      """Returns a string with the current version of the library (e.g., "0.2.0")
  
      """
      return __version__
  
new_contents: # Current version of the library
  __version__ = '0.5.0-alpha.3'
  
  def get_version():
      """Returns a string with the current version of the library (e.g., "0.2.0")
  
      """
      return __version__
  
subject: Update version to 0.5.0-alpha.3.