code: def formatted_ghost_file(self):
          
  
          # replace specials characters in 'drive:\filename' in Linux and Dynamips in MS Windows or viceversa.
          ghost_file = "{}-{}.ghost".format(os.path.basename(self._image), self._ram)
          ghost_file = ghost_file.replace('\\', '-').replace('/', '-').replace(':', '-')
          return ghost_file
docs: Returns a properly formatted ghost file name.
  
          :returns: formatted ghost_file name (string)