@Override
        public String toString() {
            return super.toString().toLowerCase(Locale.ENGLISH);
        }
Creates a ChangeType value from a node.

@param node Node to parse.
@return Returns the parsed ChangeType.
@throws ExpectationNotMetException if the node is invalid.
smithy-model/src/main/java/software/amazon/smithy/model/traits/TraitDefinition.java