That is not self contained like this

#!/usr/bin/perl --

use strict;
use warnings;


use SOAP::Lite;
my $soap = SOAP::Lite
    -> uri('http://127.0.0.1/MyModule')
    -> proxy('http://127.0.0.1:1203')
;;;;;;;;;
$soap->transport->add_handler("request_send",  \&pp_dump );
$soap->transport->add_handler("response_done", \&pp_dump );
);
$soap->autotype(0)->readable(1);
$soap->serializer->envprefix('S');
$soap->ns( "http://www.bluearc.com/BAService/LocalGroupProvider" , 'ns
+0' );


my $evsId = SOAP::Data->new(
    'name' => 'evsId',
    'value' => 'evsId',
    'prefix' => 'ns0',
    'type' => 'unsignedShort'
);

$soap->call( 'getAllLocalGroups', $evsId );



sub pp_twig {
    use XML::Twig;
    open my($fh), '>', \my $str;
    no warnings 'newline';
#~     XML::Twig->new(qw! pretty_print record !)->xparse(@_)->print( $
+fh );
    XML::Twig->new(qw! pretty_print record !)->parse(@_)->print( $fh )
+;
    $str =~ s/ xmlns/\n    xmlns/g;
    return $str;
}

sub pp_dump {
    my $content = $_[0]->content('');
    $_[0]->content( pp_twig($content) );
    print $_[0]->as_string,"\n";
    return;
}

__END__
POST http://127.0.0.1:1203 HTTP/1.1
Accept: text/xml
Accept: multipart/*
Accept: application/soap
User-Agent: SOAP::Lite/Perl/1.11
Content-Length: 573
Content-Type: text/xml; charset=utf-8
SOAPAction: "http://www.bluearc.com/BAService/LocalGroupProvider#getAl
+lLocalGroups"

<?xml version="1.0" encoding="UTF-8"?>

<S:Envelope S:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/
+"
    xmlns:S="http://schemas.xmlsoap.org/soap/envelope/"
    xmlns:ns0="http://www.bluearc.com/BAService/LocalGroupProvider"
    xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <S:Body>
    <ns0:getAllLocalGroups>
      <ns0:evsId xsi:type="xsd:unsignedShort">evsId</ns0:evsId>
    </ns0:getAllLocalGroups>
  </S:Body>
</S:Envelope>
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