Commit.Valtype t = valueval t : t Irmin__.Type.ttype node_key = Node.keyval node_key_t : node_key Irmin__.Type.ttype commit_key = keyval commit_key_t : commit_key Irmin__.Type.tval v : info:Info.t -> node:node_key -> parents:commit_key list -> tval parents : t -> commit_key list