Pwershell set property value for Netsuite

I need some help setting values in this web services property using Powershell.  Can anyone help?

passport                              Property   Microsoft.PowerShell.Commands.NewWebserviceProxy.AutogeneratedTypes.WebServiceProxy1m_wsdl_v2012_2_0_netsuite_wsdl.Passport passport {get;set;}

this is to connect using Powershell web services proxy to connect to NetSuite.  I can connect using

$webserviceproxy = New-WebServiceProxy -Uri 'https://webservices.netsuite.com/wsdl/v2012_2_0/netsuite.wsdl'
$webserviceproxy | Get-Member

but I can't figure out how to set email, password, role, and acct in the passport property. Everything I try gets and error.

Any ideas?  TIA