candidates
with
| Some(subst,metasenv,ugraph,hetype',he,args_bo_and_ty)->
subst,metasenv,ugraph,hetype',he,args_bo_and_ty
| None ->
candidates
with
| Some(subst,metasenv,ugraph,hetype',he,args_bo_and_ty)->
subst,metasenv,ugraph,hetype',he,args_bo_and_ty
| None ->