code: @NonNull
      @Override
      public MutableArray remove(int index) {
          synchronized (lock) {
              if (!internalArray.remove(index)) { throwRangeException(index); }
              return this;
          }
      }
docs: Removes the object at the given index.
  
  @param index the index. This value must not exceed the bounds of the array.
  @return The self object