Index: library/nx/nx.tcl
===================================================================
diff -u -re29434ffef30bea10b7422f1f295787d41377839 -r679a4d086fb9b8a728e0d33f5fa6520f2ce2f954
--- library/nx/nx.tcl	(.../nx.tcl)	(revision e29434ffef30bea10b7422f1f295787d41377839)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision 679a4d086fb9b8a728e0d33f5fa6520f2ce2f954)
@@ -649,6 +649,11 @@
       if {[info exists name]} {lappend cmd $name}
       return [::nsf::my {*}$cmd]
     }
+    :method "info parameter slot" {name:optional} {
+      set cmd [list ::nsf::methods::class::info::slots -type ::nx::Slot -closure]
+      if {[info exists name]} {lappend cmd $name}
+      return [::nsf::my {*}$cmd]
+    }
     :method "info slots" {{-type ::nx::Slot} -closure:switch -source pattern:optional} {
       set cmd [list ::nsf::methods::class::info::slots -type $type]
       if {[info exists source]} {lappend cmd -source $source}