old_contents: class FacepyError(Exception):
      """Base class for exceptions raised by Facepy."""
      pass
      
  class APIUnavailableError(FacepyError): pass
  class APIError(FacepyError): pass
new_contents: class FacepyError(Exception):
      """Base class for exceptions raised by Facepy."""
      pass
  
  class APIError(FacepyError): pass
subject: Remove APIUnavailableError