Add undocumented parameters to LivyOperator and LivyHook docs…

…trings (#16542)

airflow/providers/apache/livy/hooks/livy.py

@@ -49,6 +49,10 @@ class LivyHook(HttpHook, LoggingMixin):
 
     :param livy_conn_id: reference to a pre-defined Livy Connection.
     :type livy_conn_id: str
+    :param extra_options: A dictionary of options passed to Livy.
+    :type extra_options: Dict[str, Any]
+    :param extra_headers: A dictionary of headers passed to the HTTP request to livy.
+    :type extra_headers: Dict[str, Any]
 
     .. seealso::
         For more details refer to the Apache Livy API reference:

airflow/providers/apache/livy/operators/livy.py

@@ -65,8 +65,11 @@ class LivyOperator(BaseOperator):
     :type livy_conn_id: str
     :param polling_interval: time in seconds between polling for job completion. Don't poll for values >=0
     :type polling_interval: int
-    :type extra_options: A dictionary of options, where key is string and value
+    :param extra_options: A dictionary of options, where key is string and value
         depends on the option that's being modified.
+    :type extra_options: Dict[str, Any]
+    :param extra_headers: A dictionary of headers passed to the HTTP request to livy.
+    :type extra_headers: Dict[str, Any]
     """
 
     template_fields = ('spark_params',)