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<select multiple name=col size=24> <option selected value=KEYID>KEYID <option selected value=CPUTYPE>CPUTYPE <option selected value=INSTANCE_ID>INSTANCE_ID <option selected value=SYSTEM_ID>SYSTEM_ID </select>
my $response = $browser->post( $intrado, [ ... ); die "Error: ", $response->status_line unless $response->is_success;