Modifiy XML and replace ns1: by sil:

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# Description/Steps to reproduce

```
var url = "https://www.xxx.fr/xxxxx/sws/sws.asmx?wsdl";
var args = {
"SWSLogin": "xxxxx",
"SWSPassword": "xxxxx",
"USRLogin": "xxxxx",
"USRPassword": "xxxxx"
};
soap.createClient(url, wsdlOptions, function(err, client) {
var method = client['SWS_SiteLogin'];
console.log(method);
method(args, function(err, result, envelope, soapHeader) {
//response envelope
console.log('Response Envelope: \n' + envelope);
//'result' is the response body
console.log('Result: \n' + JSON.stringify(result));
});
console.log(client.lastRequest);
});
```

# Request

```

xxxxxx
xxxxxx
xxxxxx
xxxxxx

```

# Expected request

```

xxxxxx
xxxxxx
xxxxxx
xxxxxx

```

# Additional information

can you please help me to find the way to change xml and replace ns1 by sil ?

Best regards

Start with createClient and the request output exposed through client.lastRequest, using the supplied SOAP request and expected request as the comparison. Trace how the operation namespace prefix is selected; done means the generated request uses sil for the service elements while retaining the soap envelope prefix.

Written by the indexing model from the issue text.