MS PowerShell Connector encrypted parameters

I have a need for a password in the PS import script in the MS PowerShell Connector. (O365 SharePoint CSOM can't use a PSCredential object.  It requires username/password).  

I have been unable to find the syntax for extracting an encrypted parameter.

Based on the MSDN documentation  I expected this to work:

$pwd = $ConfigurationParameters["pwd_Global"].SecureValue

Does anyone know the correct method?

~Randy