code: function(topology, storeOptions) {
    var self = this;
    var storedOps = [];
    storeOptions = storeOptions || { force: false, bufferMaxEntries: -1 };
  
    // Internal state
    this.s = {
      storedOps: storedOps,
      storeOptions: storeOptions,
      topology: topology
    };
  
    Object.defineProperty(this, 'length', {
      enumerable: true,
      get: function() {
        return self.s.storedOps.length;
      }
    });
  }
docs: The store of ops