Doesn't use List::Util qw( first ); generate an unwanted first() "method" (actually, a function) that is inherited to all children? I would have coded this as use List::Util (); and return List::Util::first { $_->can($method) } @$isa;.

In reply to Re^3: Detecting Overridden Methods by Anonymous Monk
in thread Detecting Overridden Methods by Ovid

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