presto-thrift-api/src/main/java/io/prestosql/plugin/thrift/api/PrestoThriftNullableToken.java/PrestoThriftNullableToken/getToken
class PrestoThriftNullableToken:    @Nullable
    @ThriftField(value = 1, requiredness = OPTIONAL)
    public PrestoThriftId getToken()
    {
        return token;
    }