040000 tree 15ab7828e81803ad9995d37a9bae57eaaa6ee755	example_dags
040000 tree 5a188958dc2d779af5216038f3b51d97a7634c9a	hooks
040000 tree 8c92bff07239a7ad875589a50dfd66e20613446e	operators
040000 tree a662e0d140af922e79bd7345c04183862ba85fb2	transfers