code: def load_env(keys=[], name='NT', use_getpass=False):
      
      NT = namedtuple(name, keys)
      if use_getpass:
          values = [os.getenv(x) or getpass.getpass(x) for x in keys]
      else:
          values = [os.getenv(x) or input(x) for x in keys]
      return NT(*values)
docs: Returns a namedtuple from a list of environment variables.
      If not found in shell, gets input with *input* or *getpass*.