DRf Representation 1

DRf Representation

                self._data = self.to_representation(self.instance)

Here is what the above code is Doing:
1. We’re creating a new class called `DynamicFieldsModelSerializer` that inherits from `ModelSerializer`.
2. We’re overriding the `__init__` method to accept a new argument called `fields`.
3. We’re overriding the `get_fields` method to filter the fields based on the `fields` argument.
4. We’re overriding the `to_representation` method to filter the fields based on the `fields` argument.
5. We’re overriding the `to_internal_value` method to filter the fields based on the `fields` argument.
6. We’re overriding the `create` and `update` methods to filter the fields based on the `fields` argument.

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