private static @Nullable PsiExpression findOperand(@NotNull PsiElement e, @NotNull PsiPolyadicExpression expression) {
    final TextRange elementTextRange = e.getTextRange();

    for (PsiExpression operand : expression.getOperands()) {
      final TextRange operandTextRange = operand.getTextRange();
      if (operandTextRange != null && operandTextRange.contains(elementTextRange)) {
        return operand;
      }
    }
    return null;
  }
private static @Nullable PsiExpression findOperand(@NotNull PsiElement e, @NotNull PsiPolyadicExpression expression)