040000 tree 372ad5ff5cad1c9f6f9324175e4d2041b6966310	concept.invocable
040000 tree 00920f2064a29e3ef2eb1d80614134017b87b9ee	concept.regularinvocable
100644 blob bf77e44f15da825a00e15a25239486906f896223	functions.h