python bindings. Exposing ifStmt methods: getThen(), getElse(), getCond()

Hello,

Clang provides
getThen(), getElse(), getCond()
methods for IFstmt
http://clang.llvm.org/doxygen/classclang_1_1IfStmt.html

I’m using the python bindings, based on libclang and would like to expose this functionality.
I do not know how to do this, or if this is restricted on purpose.

Regards,

Juan