Make.PrinterNode printer
val print : 
  ?p:( node CCFormat.printer -> CCFormat.formatter -> node -> unit option ) ->
  ?focus:Region_pp_intf.var_name ->
  unit ->
  node CCFormat.printerPrint a node
val to_string : 
  ?p:( node CCFormat.printer -> CCFormat.formatter -> node -> unit option ) ->
  ?focus:Region_pp_intf.var_name ->
  node ->
  stringReturns a string representation of a node