@Override
    public String toString() {
        return "SliceExpression{start=" + start + ", stop=" + stop + ", step=" + step + '}';
    }
Represents a slice expression, containing an optional zero-based
start offset, zero-based stop offset, and step.

@see <a href="https://jmespath.org/specification.html#slices">Slices</a>
smithy-jmespath/src/main/java/software/amazon/smithy/jmespath/ast/SliceExpression.java