@brief Returns the CTF IR object wrapped by the CTF IR object
wrapper \p object.
+The reference count of \p object is \em not incremented by this
+function. On success, you must call bt_get() on the return value to
+have your own reference.
+
@param[in] object Object wrapper of which to get the wrapped
CTF IR object.
@returns CTF IR object wrapped by \p object.
@prenotnull{object}
+@post The reference count of the returned object is not modified.
@sa bt_ctf_object_get_type(): Returns the type of a given
CTF IR object wrapper.