"A value parameter.
     String name
     Integer length
     Boolean(Element) selecting
     shared Address privateAddress"
see (`class DefaultedValueParameter`)
shared class ValueParameter(type, name, annotations = Annotations())
        extends RequiredParameter() {
    "The annotations of the parameter."
    shared Annotations annotations;
    "The type of the parameter, or a ‘`dynamic`’ modifier."
    shared Type|DynamicModifier type;
    "The name of the parameter."
    shared LIdentifier name;
    shared actual [Annotations, Type|DynamicModifier, LIdentifier] children = [annotations, type, name];
    shared actual Result transform<out Result>(Transformer<Result> transformer)
            => transformer.transformValueParameter(this);
    shared actual void visit(Visitor visitor)
            => visitor.visitValueParameter(this);
    shared actual Boolean equals(Object that) {
        if (is ValueParameter that) {
            return annotations==that.annotations && type==that.type && name==that.name;
        } else {
            return false;
    shared actual Integer hash
            => 31 * (annotations.hash + 31 * (type.hash + 31*name.hash));
    shared ValueParameter copy(Type|DynamicModifier type = this.type, LIdentifier name = this.name, Annotations annotations = this.annotations) {
        value ret = ValueParameter(type, name, annotations);
        return ret;