Serialization error calling get_statistics_by_virtual

Here is more of the text of the question I was trying to pose:

Using iControl for .NET v11.3 with LTM 12.1.2, I am attempting to use get_statistics_by_virtual for a Client SSL Profile using the iControl for Microsoft.NET.

Is this a WSDL definition issue for .NET? I am calling a number of methods that take jagged arrays, but this is the only one where I construct the arrays rather than passing in one I received from another iControl method, and the only one defined as string[][].

Note: f5Cp acquired earlier as LocalLBProfileClientSSL
var pArray = new string[1];
var pVsArray = new string[1][];
pArray[0] = pName;
pVsArray[0] = new string[1];
pVsArray[0][0] = vsName;
var profileClientSslStatistics = f5Cp.get_statistics_by_virtual(pArray, pVsArray);

System.InvalidOperationException was unhandled
  Message=There is an error in XML document (13, 2).
  Source=System.Xml
  StackTrace:
       at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
       at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle)
       at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
       at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
       at iControl.LocalLBProfileClientSSL.get_statistics_by_virtual(String[] profile_names, String[][] virtual_names) in c:\Dev\github\f5-icontrol-library-dotnet\iControl\Interfaces\LocalLB\LocalLBProfileClientSSL.cs:line 1952
..remaining stack trace removed..

InnerException: 
       Message=The specified type was not recognized: name='Array', namespace='http://schemas.xmlsoap.org/soap/encoding/', at .

I am not a .net guy, and I haven't messed with the soap interface in quite some time. But in python, I get this data just fine with this call:

import bigsuds
b = bigsuds.BIGIP('ltm3.test.local')
x = b.LocalLB.ProfileClientSSL.get_statistics_by_virtual(['cssl'],[['testvip']])

The profile is a list of names, the virtuals is a list of lists, which I think in .net is a 2-d array, but you'd know better than I.