def decrypt_keys(self, part):

        return self.x_keys("decrypt", part)
Compute the total size of a VDI chain, starting with the specified
dataset/ETHPy150Open rohe/pyoidc/src/oic/utils/keyio.py/KeyJar.decrypt_keys--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/virt/xenapi/vm_utils.py/_get_vdi_chain_size