@google-cloud/datastore 0.5.0 does not return entity keys with query results

[floodfx]

Environment details

• OS: MacOS 10.11.6
• Node.js version: 6.9.1
• npm version: 3.10.8
• google-cloud-node version: 0.43.0
• @google-cloud/datastore version: 0.5.0

Steps to reproduce

git clone git@github.com:GoogleCloudPlatform/nodejs-docs-samples.git
cd nodejs-docs-samples/datastore

Open quickstart.js
Add code below to end of the file

// query for entities
var q = datastoreClient.createQuery(kind)
q.run((err, entities, nextQuery) => {
  console.log(err, entities, nextQuery)
  for(var i = 0; i < entities.length; i++) {
    var task = entities[i];
    console.log(`Task ${task}: Key${task.key}`);
  }
});

Run

npm install
node quickstart.js

Keys returned with entity results.

Next update package.json to use 0.5.0 of @google-cloud/datastore

Run

node quickstart.js

Keys are "undefined".

[floodfx]

Note the default version of @google-cloud/datastore for nodejs-docs-samples is "^0.1.1"

[stephenplusplus]

This issue was moved to GoogleCloudPlatform/nodejs-docs-samples#250