code: def map(self, **kwargs):
          ''' Change a name on the fly.  Compat with kr/env. '''
          return { key: str(self._envars[kwargs[key]])  # str strips Entry
                   for key in kwargs f map(self, **kwargs):
          ''' Change a name on the fly.  Compat with kr/env. '''
          return { key: str(self._envars[kwargs[key]])  # str strips Entry
                   for key in kwargs }
docs: Change a name on the fly.  Compat with kr/env.