usage: ghz [<flags>] [<host>] Flags: -h, --help Show context-sensitive help (also try --help-long and --help-man). --config= Path to the JSON or TOML config file that specifies all the test run settings. --proto= The Protocol Buffer .proto file. --protoset= The compiled protoset file. Alternative to proto. -proto takes precedence. --call= A fully-qualified method name in 'package.Service/method' o