code: def instance():
          
          if not hasattr(Vabamorf, 'pid') or Vabamorf.pid != os.getpid():
              Vabamorf.pid = os.getpid()
              Vabamorf.morf = Vabamorf()
          return Vabamorf.morf
docs: Return an PyVabamorf instance.
  
          It returns the previously initialized instance or creates a new
          one if nothing exists. Also creates new instance in case the
          process has been forked.