Lookup a tree object from the repository.
@param out_ Pointer to the looked up tree @param repo The repo to use when locating the tree. @param id Identity of the tree to locate. @return 0 or an error code
See Implementation
Lookup a tree object from the repository.
@param out_ Pointer to the looked up tree @param repo The repo to use when locating the tree. @param id Identity of the tree to locate. @return 0 or an error code