code: function(cb){
  
          if(!_isOpen){
              _self.open(function () {
                  _self.removeAll(function() {
                      getCollection(cb);
                  });
              });
          } else {
              getCollection(cb);
          }
  
          function getCollection(cb) {
              _db.collection(_collection, cb);
          }
      }
docs: Gets the Blocklist collection from the MongoDB instance.