@Override
        public Node intEnumShape(IntEnumShape shape) {
            return createNamedMemberShape(shape, shape.getAllMembers());
        }
Sets the IDL version to serialize. Defaults to 2.0.

<p>Version "1.0" serialization cannot be used with {@link #includePrelude}.

@param version IDL version to set. Can be "1", "1.0", "2", or "2.0".
               "1" and "2" are normalized to "1.0" and "2.0".
@return Returns the builder.
smithy-model/src/main/java/software/amazon/smithy/model/shapes/ModelSerializer.java