[31499->31499]  DB<1> Exporter::import(/export/packages/perl-5.12.3/lib/5.12.3/Exporter.pm:64):
64:       *{"$callpkg\::$_"} = \&{"$pkg\::$_"} foreach @_;

##</code><code>##

$callpkg = "Module::Runtime"
@_ = ("is_string")
$_ = "is_string"
$pkg = "Params::Classify"

##</code><code>##

&{"$pkg\::$_"}

##</code><code>##

...
#87243 0x00007fd820981b7a in myck_entersub (my_perl=0x2143000, op=0x260b250) at lib/Params/Classify.xs:635
#87244 0x00007fd820981b7a in myck_entersub (my_perl=0x2143000, op=0x260b250) at lib/Params/Classify.xs:635
#87245 0x00007fd820981b7a in myck_entersub (my_perl=0x2143000, op=0x260b250) at lib/Params/Classify.xs:635
#87246 0x00007fd820981b7a in myck_entersub (my_perl=0x2143000, op=0x260b250) at lib/Params/Classify.xs:635
#87247 0x00007fd826cae142 in Perl_convert (my_perl=0x2143000, type=173, flags=192, o=0x260b250) at op.c:2652
#87248 0x00007fd826cb351c in Perl_utilize (my_perl=0x2143000, aver=1, floor=147, version=0x0, idop=0x2617d20, 
    arg=0x264e210) at op.c:3979
#87249 0x00007fd826d4d17c in Perl_yyparse (my_perl=0x2143000) at perly.y:674
#87250 0x00007fd826ef2d6d in S_doeval (my_perl=0x2143000, gimme=2, startop=0x0, outside=0x0, seq=2054)
    at pp_ctl.c:3112
#87251 0x00007fd826efa35e in Perl_pp_require (my_perl=0x2143000) at pp_ctl.c:3690
#87252 0x00007fd826da5fc8 in Perl_runops_debug (my_perl=0x2143000) at dump.c:2049
#87253 0x00007fd826cdadb6 in Perl_eval_sv (my_perl=0x2143000, sv=0x2160e28, flags=4) at perl.c:2705
#87254 0x0000000000401a47 in perl_load_module_1 ()
#87255 0x00000000004040f9 in main ()