T.Vartype t = Tock0.field Snarky_backendless.Cvar.tval length : t -> intval var_indices : t -> int listval to_constant_and_terms : t -> Tock0.field option * (Tock0.field * int) listval constant : Tock0.field -> tval to_constant : t -> Tock0.field optionval linear_combination : (Tock0.field * t) list -> tval scale : t -> Tock0.field -> tval project : Tock0.Boolean.var list -> tval pack : Tock0.Boolean.var list -> t