message: Fix incorrect typing
diff: @@ -191,7 +191,7 @@ def cli_proposal(func):
  @cli_proposal
  def new_member(
  member_cert_path: str,
  - member_enc_pubk_path: Optional[str] = None,
  + member_enc_pubk_path: str = None,
  member_data: Any = None,
  **kwargs,
  ):
  