Create code like this::
        
            person = Person(name='Jack', person_id=1)

def repr_new_instance(self, class_data):
        """Create code like this::
        
            person = Person(name='Jack', person_id=1)
        """
        classname = self.formatted_classname(class_data["classname"])
        instancename = self.formatted_instancename(class_data["classname"])
        arguments = list()
        for key, value in self.sorted_dict(class_data.get("metadata", dict())):
            arguments.append("%s=%r" % (key, value))
        return "%s = %s(%s)" % (
            instancename, classname, ", ".join(arguments))