Added/updated snippets for docs (#2318)

docs/doc_examples/253140cb1e270e5ee23e15dbaeaaa0ea.asciidoc

@@ -0,0 +1,10 @@
+// This file is autogenerated, DO NOT EDIT
+// Use `node scripts/generate-docs-examples.js` to generate the docs examples
+
+[source, js]
+----
+const response = await client.indices.dataStreamsStats({
+  human: "true",
+});
+console.log(response);
+----