def write(self, output_buffer, kmip_version=enums.KMIPVersion.KMIP_2_0):
        """
        Write the DefaultsInformation structure encoding to the data stream.

        Args:
            output_buffer (stream): A data stream in which to encode
                Attributes structure data, supporting a write method.
            kmip_version (enum): A KMIPVersion enumeration defining the KMIP
                version with which the object will be encoded. Optional,
                defaults to KMIP 2.0.

        Raises:
            InvalidField: Raised if the object defaults field is not defined.
            VersionNotSupported: Raised when a KMIP version is provided that
                does not support the DefaultsInformation structure.
        """
        if kmip_version < enums.KMIPVersion.KMIP_2_0:
            raise exceptions.VersionNotSupported(
                "KMIP {} does not support the DefaultsInformation "
                "object.".format(
                    kmip_version.value
                )
            )

        local_buffer = BytearrayStream()

        if self._object_defaults:
            for object_default in self._object_defaults:
                object_default.write(local_buffer, kmip_version=kmip_version)
        else:
            raise exceptions.InvalidField(
                "The DefaultsInformation structure is missing the object "
                "defaults field."
            )

        self.length = local_buffer.length()
        super(DefaultsInformation, self).write(
            output_buffer,
            kmip_version=kmip_version
        )
        output_buffer.write(local_buffer.buffer)