Man pages matching name globus_gram_client_callback in section 3:

globus_gram_client_callback.3.en	debian 10 / libglobus-gram-client-doc
globus_gram_client_callback.3.en	debian 11 / libglobus-gram-client-doc
globus_gram_client_callback.3.en	debian 12 / libglobus-gram-client-doc