sig
type ('s, 'a) t = 's -> 'a * 's
module Op :
sig
val ( >>= ) :
('s, 'a) Cf_smonad.t ->
('a -> ('s, 'b) Cf_smonad.t) -> ('s, 'b) Cf_smonad.t
end
val nil : ('s, unit) Cf_smonad.t
val return : 'a -> ('s, 'a) Cf_smonad.t
val load : ('s, 's) Cf_smonad.t
val store : 's -> ('s, unit) Cf_smonad.t
val modify : ('s -> 's) -> ('s, unit) Cf_smonad.t
val field : ('s -> 'a) -> ('s, 'a) Cf_smonad.t
end