NAME
MIME::Expander::Plugin::ApplicationGzip - a plugin for MIME::Expander
SYNOPSIS
my $expander = MIME::Expander::Plugin::ApplicationGzip->new;
$expander->expand($part, sub {
        my $contents = shift;
        my $metadata = shift || {};
        print $metadata->{content_type}, "\n";
        print $metadata->{filename}, "\n";
    });
DESCRIPTION
Expand data that media type is "application/gzip" or "application/x-gzip".