       return
     }
     let host = "example.com"
-    channel = gRPC.Channel(address: address, certificates: certificates, host: host)
+    channel = Channel(address: address, certificates: certificates, host: host)
   } else {
-    channel = gRPC.Channel(address: address, secure: false)
+    channel = Channel(address: address, secure: false)
   }
 
   channel.host = host

    else {
      return
    }
    server = gRPC.Server(address: address,
                         key: key,
                         certs: certificate)
  } else {
    server = gRPC.Server(address: address)
  }

  // start the server


func runClient(useSSL: Bool) throws {
  let message = clientText.data(using: .utf8)
  var channel: Channel!

  if useSSL {
    let certificateURL = URL(fileURLWithPath: "Tests/ssl.crt")
