whole_func_string: function _delete(id, cb) {
      getCollection(function (err, collection) {
        if (err) { return cb(err); }
        collection.remove({
          _id: new ObjectID(id)
        }, cb);
      });
    }
func_code_string: function _delete(id, cb) {
      getCollection(function (err, collection) {
        if (err) { return cb(err); }
        collection.remove({
          _id: new ObjectID(id)
        }, cb);
      });
    }
func_documentation_string: [END update]