In perl, how can I find out the module where a specific exported function is defined?

Question

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In Perl, how can I check from which module a given function was imported?

Is it possible to find out the module or file where a specific perl function was defined?

For example, let's say you have a perl script that imports several modules, and one of the modules exports a function named foo() using Exporter's @EXPORT array. How can I programmatically determine the module where foo() was defined?

I tried the following:

use YAML;
sub identify_typeglob {
    my $glob = shift;
    print 'You gave me ', *{$glob}{PACKAGE}, '::', *{$glob}{NAME}, "\n";
}
identify_typeglob *Dump;

But that just gives me main::Dump, even though the actual source of the function is YAML::Dump.