Document perl5i use as debugger

[grtodd]

Is there missing documentation regarding the use of perl5i in the debugger? This works:

perl5i -e '$n = "2"; say "numeric!" if $n->is_number;'              
numeric!

and so does this:

perl5i -de '$n = "2"; say "numeric!" if $n->is_number;' 

Loading DB routines from perl5db.pl version 1.37
Editor support available.

Enter h or 'h h' for help, or 'man perldebug' for more help.

main::(/tmp/perl5i.nVVv5i:1):   $0 = '-e';
  DB<1> n                                                                                                           
main::(-e:1):   $n = "2"; say "numeric!" if $n->is_number;
  DB<1> n                                                                                                           
main::(-e:1):   $n = "2"; say "numeric!" if $n->is_number;
  DB<1> n                                                                                                           
numeric!

But bringing up the debugger in the classic -de1 mode I get this:

 perl -de1

Loading DB routines from perl5db.pl version 1.37
Editor support available.

Enter h or 'h h' for help, or 'man perldebug' for more help.

main::(-e:1):   1
  DB<1>  use perl5i::latest;                                                                                        

  DB<2> $n = 42;                                                                                                    

  DB<3> say "It's a number"   if $n->is_number;                                                                    
Can't call method "is_number" without a package or object reference at (eval 104)[/usr/local/lib/perl5/5.16.2/perl5db.pl:646] line 2.

  DB<4>   

Adding use indirect; starting with -Mperl5i::latest ; explictly calling 'use autobox'; or using perl5i -de1 doesn't improve the situation. What am I missing?