added OPENML_TEST_SERVER_ADMIN_KEY_ENV_VAR

Author: satvshr

openml/_config.py

@@ -82,6 +82,7 @@ def __init__(self) -> None:
         self.OPENML_CACHE_DIR_ENV_VAR = "OPENML_CACHE_DIR"
         self.OPENML_SKIP_PARQUET_ENV_VAR = "OPENML_SKIP_PARQUET"
         self._TEST_SERVER_NORMAL_USER_KEY = "normaluser"
+        self.OPENML_TEST_SERVER_ADMIN_KEY_ENV_VAR = "OPENML_TEST_SERVER_ADMIN_KEY"
         self.TEST_SERVER_URL = "https://test.openml.org"
 
         self._config: OpenMLConfig = OpenMLConfig()