@Override
  public @Nullable String getFunctionName() {
    if (myElement instanceof LeafPsiElement) {
      return ((PyElementType)((LeafPsiElement)myElement).getElementType()).getSpecialMethodName();
    }
    else if (myElement instanceof PyPrefixExpression) {
      return getUnaryOperatorSpecialMethodName(((PyPrefixExpression)myElement).getOperator());
    }
    return null;
  }
@Override
  public @Nullable String getFunctionName()