Layout.Overlay
val pretty :
?title:( Stdlib.Format.formatter -> unit ) ->
'a Frama_c_kernel.Pretty_utils.formatter ->
'a overlay Frama_c_kernel.Pretty_utils.formatter
val merge :
'a Frama_c_kernel.Pretty_utils.formatter ->
'a merger ->
'a overlay ->
'a overlay ->
'a overlay
val once : 'a -> 'a overlay -> bool