GtkSourceView3Props.SourceCompletionItem
val cast : 'a Gobject.obj -> GtkSourceView3_types.source_completion_proposal Gobject.obj
module P : sig ... end
module S : sig ... end
val create : GtkSourceView3_types.source_completion_proposal Gobject.param list -> GtkSourceView3_types.source_completion_proposal Gobject.obj