Method dump

src/marshmallow/schema.py:548–579

Serialize an object to native Python data types according to this Schema's fields. :param obj: The object to serialize. :param many: Whether to serialize `obj` as a collection. If `None`, the value for `self.many` is used. :return: Serialized data

(self, obj: typing.Any, *, many: bool | None = None)

        return ret

    def dump(self, obj: typing.Any, *, many: bool | None = None):
        """Serialize an object to native Python data types according to this
        Schema's fields.

        :param obj: The object to serialize.
        :param many: Whether to serialize `obj` as a collection. If `None`, the value
            for `self.many` is used.
        :return: Serialized data

        .. versionchanged:: 3.0.0b7
            This method returns the serialized data rather than a ``(data, errors)`` tuple.
            A :exc:`ValidationError <marshmallow.exceptions.ValidationError>` is raised
            if ``obj`` is invalid.
        .. versionchanged:: 3.0.0rc9
            Validation no longer occurs upon serialization.
        """
        many = self.many if many is None else bool(many)
        if self._hooks[PRE_DUMP]:
            processed_obj = self._invoke_dump_processors(
                PRE_DUMP, obj, many=many, original_data=obj
            )
        else:
            processed_obj = obj

        result = self._serialize(processed_obj, many=many)

        if self._hooks[POST_DUMP]:
            result = self._invoke_dump_processors(
                POST_DUMP, result, many=many, original_data=obj
            )

        return result

    def dumps(self, obj: typing.Any, *args, many: bool | None = None, **kwargs):
        """Same as :meth:`dump`, except return a JSON-encoded string.