How do I call a paremeterless generic method from Powershell v3?

How do I call a paremeterless generic method from Powershell v3?

For example I have an object $m with the following method overloads:
PS C:\Users\Me> $m.GetBody
OverloadDefinitions
-------------------
T GetBody[T]()
T GetBody[T](System.Runtime.Serialization.XmlObjectSerializer serializer)
If I try to invoke the parameterless method I get:
PS C:\Users\Me> $m.GetBody()
Cannot find an overload for "GetBody" and the argument count: "0".
At line:1 char:1
+ $m.GetBody()
+ ~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodException
+ FullyQualifiedErrorId : MethodCountCouldNotFindBest
I understand PowerShell v3.0 is supposed to work more easily with
generics. Obviously I need to tell it somehow what type I want returned
but I cannot figure out the syntax.