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