def read(self, istream, kmip_version=enums.KMIPVersion.KMIP_1_0):
super(ActivateResponsePayload, self).read(<EOL>istream,<EOL>kmip_version=kmip_version<EOL>)<EOL>tstream = BytearrayStream(istream.read(self.length))<EOL>self.unique_identifier = attributes.UniqueIdentifier()<EOL>self.unique_identifier.read(tstream, kmip_version=kmip_version)<EOL>self.is_oversized(tstream)<EOL>self.validate()<EOL>
Read the data encoding the ActivateResponsePayload object and decode it
into its constituent parts.

Args:
    istream (Stream): A data stream containing encoded object data,
        supporting a read method; usually a BytearrayStream object.
    kmip_version (KMIPVersion): An enumeration defining the KMIP
        version with which the object will be decoded. Optional,
        defaults to KMIP 1.0.