my $soap = SOAP::Lite->new( proxy => 'http://mywebservice/');
my $som = $soap->call(
  'MyMethod',
  SOAP::Data->name(MyArg => 'XYZ')
);
die $som->faultstring if ($som->fault);

#print Dumper($som->result);

my @nodes = $som->valueof('//Path/To/Data');
foreach my $node (@nodes)
{
  print Dumper($node);
}

#print Dumper($som);

print Dumper($som->{_context}->{_transport}->{_proxy}->{_http_response}->{_content});