040000 tree 55b9b259b44fd7eb0d1c44c182fa1583ed7c36fa	example_dags
040000 tree 41c7e0744a90500e61e877ee37582a517649bd11	hooks
040000 tree 20f92003d9aae1ad9463789fbc85539a524a485f	operators
040000 tree 39a0c9a5b1d6ef3d25459d8ffc5ea8a651c4d7ba	transfers