code: def to_description_dict(self):
          
          return {
              'certificateArn': self.arn,
              'certificateId': self.certificate_id,
              'status': self.status,
              'certificatePem': self.certificate_pem,
              'ownedBy': self.owner,
              'creationDate': self.creation_date,
              'lastModifiedDate': self.last_modified_date,
              'transferData': self.transfer_data
          }
docs: You might need keys below in some situation
            - caCertificateId
            - previousOwnedBy