Create code like this::
        
            class Person(Base):
                def __init__(self, person_id=None, name=None):
                    self.person_id = person_id
                    self.name = name

def repr_def_class(self, class_data):
        """Create code like this::
        
            class Person(Base):
                def __init__(self, person_id=None, name=None):
                    self.person_id = person_id
                    self.name = name
        """
        classname = self.formatted_classname(class_data["classname"])
        if classname not in self.classes:
            self.lines.append("")
            self.lines.append("class %s(%s):" % (classname, self.basename))
            
            kwargs = list()
            setattr_arguments = list()
            for attr in self._classes[classname]:
                kwargs.append("%s=None" % attr)
                setattr_arguments.append(
                    self.Tab2 + "self.%s = %s" % (attr, attr))
            if len(kwargs):
                line = self.Tab + "def __init__(self, %s):" % ", ".join(kwargs)
            else:
                line = self.Tab + "def __init__(self):"
            self.lines.append(line)
            for setattr_argument in setattr_arguments:
                self.lines.append(setattr_argument)
            if len(setattr_arguments):
                self.lines.append("")
            self.classes.add(classname)