code: public OperationFuture<AlertPolicy> modify(AlertPolicy policyRef,
          AlertPolicyConfig modifyConfig) {
  
          AlertPolicyMetadata policyToUpdate = findByRef(policyRef);
  
  
          client.modifyAlertPolicy(
              policyToUpdate.getId(),
              converter.buildModifyAlertPolicyRequest(modifyConfig, policyToUpdate)
          );
  
          return new OperationFuture<>(
              policyRef,
              new NoWaitingJobFuture()
          );
      }
docs: Update Alert policy
  
  @param policyRef policy reference
  @param modifyConfig update policy config
  @return OperationFuture wrapper for AlertPolicy