[7.x] Update API generator for async

elasticsearch/_async/client/ssl.py

@@ -0,0 +1,18 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
+from .utils import NamespacedClient, query_params
+
+
+class SslClient(NamespacedClient):
+    @query_params()
+    def certificates(self, params=None, headers=None):
+        """
+        Retrieves information about the X.509 certificates used to encrypt
+        communications in the cluster.
+        `<https://www.elastic.co/guide/en/elasticsearch/reference/master/security-api-ssl.html>`_
+        """
+        return self.transport.perform_request(
+            "GET", "/_ssl/certificates", params=params, headers=headers
+        )