code: def test_login_with_org_valid_org_name_not_member(self, mock_post):
      mock_resp = self._mock_response(
          json_data={
              "token": "123",
              "active_organization": {
                  "slug": "mock-org",
                  "is_found": True,
                  "is_member": False,
              },
          }
      )
      mock_post.return_value = mock_resp
  
      au = ArrowUploader()
  
      with pytest.raises(Exception):
          au.login(username="u", password="p", org_name="mock-org")
  
      with pytest.raises(Exception):
          au.token
  
imports: import graphistry, mock, pandas, pytest, unittest
  from graphistry import ArrowUploader
  from graphistry.pygraphistry import PyGraphistry
label_desc: Use image node_id 6 for calling the TestArrowUploader_Comms obj's underlying member method code with example usage: obj.test_login_with_org_valid_org_name_not_member(mock_post) without return types