pub unsafe extern "C" fn switch_core_media_get_timer(
session: *mut switch_core_session_t,
mtype: switch_media_type_t,
) -> *mut switch_timer_tpub unsafe extern "C" fn switch_core_media_get_timer(
session: *mut switch_core_session_t,
mtype: switch_media_type_t,
) -> *mut switch_timer_t