040000 tree d3e7a4b09751006d433af676a2edeacb100f398e	scala_streamlet_with_filter_and_transform
040000 tree 3e90949942b98a724c44a206290169f36ceb7061	scala_streamlet_with_map_and_flatmap_and_filter_and_clone
040000 tree 488835f20a29f7ac31361cbc55c3739a120b5ac2	scala_streamlet_with_split_and_with_stream