ppx_mysql.runtime
Stdlib.Result
ppx_mysql
type ('a, 'e) t = ('a, 'e) result =
| Ok of 'a
| Error of 'e
val bind : ('a, 'e) t -> ('a -> ('b, 'e) t) -> ('b, 'e) t
val (>>=) : ('a, 'e) t -> ('a -> ('b, 'e) t) -> ('b, 'e) t