Replacement of IUser API for EP6

Hi,

Can somebody tell me that what is replacement of following IUser apis for EP6:

1.getMappingInfo()

2.getValuesForKey()

3.getRawUserMappingData()

4.getKeys()

The following apis are with EP5. But I am not able to see them with EP6.

What are the replacement IUser api for the above in EP6.

Thanks in advance.

Manish