void vertexAttribI4iv(int index, v)

Source 

void vertexAttribI4iv(int index, v) {
  if ((v is Int32List) && (index is int)) {
    _blink.BlinkWebGL2RenderingContext.instance
        .vertexAttribI4iv_Callback_2_(this, index, v);
    return;
  }
  if ((v is List<int>) && (index is int)) {
    _blink.BlinkWebGL2RenderingContext.instance
        .vertexAttribI4iv_Callback_2_(this, index, v);
    return;
  }
  throw new ArgumentError("Incorrect number or type of arguments");
}