Module Manip.Class

val contain : 'a elt -> string -> bool
val remove : 'a elt -> string -> unit
val removes : 'a elt -> string list -> unit
val add : 'a elt -> string -> unit
val adds : 'a elt -> string list -> unit
val replace : 'a elt -> string -> string -> unit
val clear : 'a elt -> unit
val toggle : 'a elt -> string -> unit
val toggle2 : 'a elt -> string -> string -> unit