presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/thrift/ThriftMetastoreConfig.java/ThriftMetastoreConfig/setImpersonationEnabled
class ThriftMetastoreConfig:    @Config("hive.metastore.thrift.impersonation.enabled")
    @LegacyConfig("hive.metastore.impersonation-enabled")
    @ConfigDescription("Should end user be impersonated when communicating with metastore")
    public ThriftMetastoreConfig setImpersonationEnabled(boolean impersonationEnabled)
    {
        this.impersonationEnabled = impersonationEnabled;
        return this;
    }