presto-verifier/src/main/java/io/prestosql/verifier/PrestoVerifierModule.java/PrestoVerifierModule/bindEventClientClasses
class PrestoVerifierModule:    private static void bindEventClientClasses(Set<String> eventClientTypes, Multibinder<EventClient> multibinder)
    {
        for (String eventClientType : eventClientTypes) {
            if (eventClientType.equals("human-readable")) {
                multibinder.addBinding().to(HumanReadableEventClient.class).in(Scopes.SINGLETON);
            }
            else if (eventClientType.equals("file")) {
                multibinder.addBinding().to(JsonEventClient.class).in(Scopes.SINGLETON);
            }
        }
    }