From CB conversation, it seems like you want this file to modify itself, generating the pod and methods. That is an evil desire.
Ok, here's an evil thought to go with it.
use Tie::File;
tie my @file, 'Tie::File', $0 or die $!;
splice @file, $begin_lineno, $begin_length, split $/, eval <<B_SUGAR;
# etc.
I wouldn't do it ;-)
Every time I look at this, I see something more that needs doing to make it work. That's a bad sign. Take this a purely conceptual notion.
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