gpgme_op_import_keys in gpgme 1.1.6

[Sebastian Hübner]

Hello everybody,

I am using gpgme 1.1.6. This is the last stable package for debian
"lenny". As far as I can tell, I can not use the function
gpgme_op_import_keys() in this version of gpgme.

(The function is mentioned in the reference manual for gpgme 1.2.0)

How can I import keys from key a keyserver using gpgme 1.1.6?
Is there any similar to gpgme_op_import_keys() or do I have to install
gpgme 1.2.

Thanks in advance,
Sebastian