Sourceval append : string -> string -> t -> unit Sourceval delete : string -> t -> unit Sourceval set : string -> string -> t -> unit Sourceval has : string -> t -> bool Sourceval appendObject : string -> < .. > Js.t -> ?filename:string -> t -> unit Sourceval appendBlob : string -> blob -> ?filename:string -> t -> unit Sourceval appendFile : string -> file -> ?filename:string -> t -> unit Sourceval setObject : string -> < .. > Js.t -> ?filename:string -> t -> unit Sourceval setBlob : string -> blob -> ?filename:string -> t -> unit Sourceval setFile : string -> file -> ?filename:string -> t -> unit