assert_sha1_type   64 builtin/commit-tree.c 			assert_sha1_type(sha1, OBJ_COMMIT);
assert_sha1_type 1023 cache.h        extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
assert_sha1_type 1532 commit.c       	assert_sha1_type(tree, OBJ_TREE);