docs: public QueryResults<ProjectionEntity> newProjectionEntityQuery(String kind, String property) {
      // [START newProjectionEntityQuery]
      Query<ProjectionEntity> query =
          Query.newProjectionEntityQueryBuilder().setKind(kind).addProjection(property).build();
      QueryResults<ProjectionEntity> results = datastore.run(query);
      // Use results
      // [END newProjectionEntityQuery]
      return results;
    }