code: def getctime(self, path):
          
          try:
              file_obj = self.filesystem.resolve(path)
          except IOError:
              self.filesystem.raise_os_error(errno.ENOENT)
          return file_obj.st_ctime
docs: Returns the creation time of the fake file.
  
          Args:
              path: the path to fake file.
  
          Returns:
              (int, float) the creation time of the fake file in number of
                  seconds since the epoch.
  
          Raises:
              OSError: if the file does not exist.