if (this !is KtExpression) return null
        val calleeExpression = deparenthesize(this) ?: return null
        if (calleeExpression is KtCallExpression) return null
        val callExpression = parentOfType<KtCallExpression>() ?: return null
        if (deparenthesize(callExpression.calleeExpression) != calleeExpression) return null
        return callExpression
    }

    /**