SourceCompletionProposal.Pval icon : ([> `sourcecompletionproposal ], GdkPixbuf.pixbuf) Gobject.propertyval info : ([> `sourcecompletionproposal ], string) Gobject.propertyval label : ([> `sourcecompletionproposal ], string) Gobject.propertyval markup : ([> `sourcecompletionproposal ], string) Gobject.propertyval text : ([> `sourcecompletionproposal ], string) Gobject.property