code: function get(datastore, kind, namespace) {
      return function(id, cb) {
          var keyParam = [kind, id];
          if (namespace) {
              keyParam = {
                  namespace: namespace,
                  path: keyParam
              };
          }
          var key = datastore.key(keyParam);
  
          datastore.get(key, function(err, entity) {
              if (err)
                  return cb(err);
  
              return cb(null, entity ? entity : null);
          });
      };
  }
docs: Given a datastore reference and a kind, will return a function that will get a single entity by key
  
  @param {Object} datastore A reference to the datastore Object
  @param {String} kind The entity kind
  @returns {Function} The get function