code: def encryption_configuration(self):
          
          prop = self._properties.get("encryptionConfiguration")
          if prop is not None:
              prop = EncryptionConfiguration.from_api_repr(prop)
          return prop
docs: google.cloud.bigquery.table.EncryptionConfiguration: Custom
          encryption configuration for the table.
  
          Custom encryption configuration (e.g., Cloud KMS keys) or :data:`None`
          if using default encryption.
  
          See `protecting data with Cloud KMS keys
          <https://cloud.google.com/bigquery/docs/customer-managed-encryption>`_
          in the BigQuery documentation.