| TLS | Configures connection level security credentials | tls.Config | 
| Authority | Set the value to be used as the :authority pseudo-header | string | 
| DisableHealthCheck | Disable health check | bool | 
| HealthCheckAttemptTimeout | Specify how to long to wait for service response on each health check attempt | time.Duration | 
| HealthCheckTimeout | Set the default health check timeout | time.Duration | 
| EnableKeepAliveCheck | Set enable keep alive check | bool | 
| KeepAliveTime | Set the keep alive time | time.Duration | 
| KeepAliveTimeout | Set the keep alive timeout | time.Duration | 
| KeepAlivePermitWithoutStream | Set if client sends keepalive pings even with no active RPCs | bool |