040000 tree 4a7112b872947e972d70b9c83e108db207c8e714	android
040000 tree 98cfc9137299509c733fa5376edfdc2a3717210f	darwin
040000 tree b89bd40b351df03f3557b594a58508c9ca70a370	fuchsia
040000 tree e6a537759e160cfc6de8b65770368c35f7a51b90	linux
040000 tree 4336896f58808627415695893d9d3a472f05bc63	posix
040000 tree 2bbfb073a5637b9e5a5b9d88e6f80a42e9de110f	win