presto-hive/src/main/java/io/prestosql/plugin/hive/authentication/AuthenticationModules.java/AuthenticationModules/simpleImpersonatingHdfsAuthenticationModule
class AuthenticationModules:    public static Module simpleImpersonatingHdfsAuthenticationModule()
    {
        return binder -> {
            binder.bind(Key.get(HadoopAuthentication.class, ForHdfs.class))
                    .to(SimpleHadoopAuthentication.class);
            binder.bind(HdfsAuthentication.class)
                    .to(ImpersonatingHdfsAuthentication.class)
                    .in(SINGLETON);
        };
    }