Auto-generated code for 8.x (#2412)

Co-authored-by: Josh Mock <joshua.mock@elastic.co>

docs/doc_examples/ba650046f9063f6c43d76f47e0f94403.asciidoc

@@ -0,0 +1,35 @@
+// 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.create({
+  index: "idx",
+  settings: {
+    index: {
+      mapping: {
+        source: {
+          mode: "synthetic",
+        },
+      },
+    },
+  },
+  mappings: {
+    properties: {
+      date: {
+        type: "date",
+      },
+    },
+  },
+});
+console.log(response);
+
+const response1 = await client.index({
+  index: "idx",
+  id: 1,
+  document: {
+    date: ["2015-01-01T12:10:30Z", "2014-01-01T12:10:30Z"],
+  },
+});
+console.log(response1);
+----