Introduce autogenerated Datastore client. (#2082)

Author: jmuk

handwritten/nodejs-datastore/package.json

@@ -56,6 +56,7 @@
     "concat-stream": "^1.5.0",
     "create-error-class": "^3.0.2",
     "extend": "^3.0.0",
+    "google-gax": "^0.12.3",
     "is": "^3.0.1",
     "lodash.flatten": "^4.2.0",
     "modelo": "^4.2.0",

handwritten/nodejs-datastore/src/index.js

@@ -545,3 +545,4 @@ Datastore.Query = Query;
 Datastore.Transaction = Transaction;
 
 module.exports = Datastore;
+module.exports.v1 = require('./v1');