"-f", Arg.Set_int(sample_factor), "sample factor [default=64]";
"-i", Arg.Set(index_empty_texts), "index empty texts [default=false]";
"-d", Arg.Set(disable_text_collection), "disable text collection[default=false]";
"-f", Arg.Set_int(sample_factor), "sample factor [default=64]";
"-i", Arg.Set(index_empty_texts), "index empty texts [default=false]";
"-d", Arg.Set(disable_text_collection), "disable text collection[default=false]";