100644 blob 993bf4ed92c2da28b6b137ffdc1268ed45332f5d	1.cc
100644 blob 0746db95d7a6457c19ad2b5f25cd13719e8dd623	2.cc
040000 tree 1e1d163ba4f842efbf699a24c1e402addae84f02	concepts.callable
040000 tree 9f1b2f2c33b33caf9767c027331bda8e26246488	concepts.lang
040000 tree a8dc8019af2310a720c92ebf46a88e0924fc8840	concepts.object