UITextInputMode names?

Question

I know I can get the language codes for the UIInputModes via the primaryLanguage property

NSArray *inputModes = [UITextInputMode activeInputModes];

for (UITextInputMode *current in inputModes)
{
    NSString *primaryLanguage = current.primaryLanguage;
    NSLog(@"Current text input is: %@", primaryLanguage);

}

but how can I get the actual names of the Input Modes? In other words, there could be multiple keyboards with "en-US" as the primary language... how do I determine which one is mine?

Thanks.