presto-verifier/src/main/java/io/prestosql/verifier/VerifierConfig.java/VerifierConfig/setControlGateway
class VerifierConfig:    @ConfigDescription("URL for control cluster")
    @Config("control.gateway")
    public VerifierConfig setControlGateway(String controlGateway)
    {
        this.controlGateway = controlGateway;
        return this;
    }