@Override
    public <T> T accept(ExpressionVisitor<T> visitor) {
        return visitor.visitCurrentNode(this);
    }
Gets the current node.

<a href="https://jmespath.org/specification.html#current-node">current-node</a>
smithy-jmespath/src/main/java/software/amazon/smithy/jmespath/ast/CurrentExpression.java