Wanted to eliminate the repetition in the classes created to reduce duplication

Question

Can some one help me on how to eliminate repetition to reduce duplication score on the below classes created in the code

class EnquiryFilterSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = '__all__'


class EnquirySerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = '__all__'

    def update(self, instance, validated_data):
    # making sure if broker is not fetched then replace null value with
    # some resonable data as it will help in duing filter
        if len(validated_data.get('email_broker', instance.email_broker)) == 0:
            instance.email_broker = not_avbl

        instance.save()
        return instance


class EnquiryBrokerNameSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = ['broker_email_id']


class EnquiryAssignedUserSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = ['email_assigned_user']


class EnquiryInsuredNameSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = ['ef_insured_name']


class EnquiryObligorNameSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = ['ef_obligor_name']


class EnquiryCountryNameSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = ['el_country_name']


class EnquiryLimitSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = ['enquirylog_limit']


class EnquiryDecisionSerializer(serializers.ModelSerializer):
    class Meta:
        model = enquirylog
        fields = ['ef_underwriter_decision']


class NotesSerializer(serializers.ModelSerializer):
    class Meta:
        model = notes
        fields = '__all__'

Answer 1

type is just another type. Classes can be created in, and returned from, functions just fine. An approach kind of like

def basic_model_serializer(model, fields):
    _model, _fields = model, fields

    class _internal(serializers.ModelSerializer):
        class Meta:
            model = _model
            fields = _fields

    return _internal

EnquiryFilterSerializer = basic_model_serializer(enquirylog, '__all__')
EnquiryBrokerNameSerializer = basic_model_serializer(enquirylog, ['broker_email_id'])
...
NotesSerializer = basic_model_serializer(notes, '__all__')

class EnquirySerializer(serializers.ModelSerializer):
    ... # unchanged due to update()

would let you abstract over the few differences of the most similar classes in a pretty natural way. Is it an improvement over your existing code? Maybe in some ways, maybe not in others.