Db (p.guardian.0.0.5.doc.guardian.backend.Guardian

val initialize : unit -> unit

val fetch_pool : 
  ?ctx:(string * string) list ->
  unit ->
  (Caqti_lwt.connection, Caqti_error.t) Caqti_lwt.Pool.t

val add_pool : ?pool_size:int -> string -> string -> unit

val find_opt : 
  ?ctx:(string * string) list ->
  ('a, 'b, [< `One | `Zero ]) Caqti_request.t ->
  'a ->
  'b option Lwt.t

val find : 
  ?ctx:(string * string) list ->
  ('a, 'b, [< `One ]) Caqti_request.t ->
  'a ->
  'b Lwt.t

val collect : 
  ?ctx:(string * string) list ->
  ('a, 'b, [< `Many | `One | `Zero ]) Caqti_request.t ->
  'a ->
  'b list Lwt.t

val exec : 
  ?ctx:(string * string) list ->
  ('a, unit, [< `Zero ]) Caqti_request.t ->
  'a ->
  unit Lwt.t