pub unsafe extern "C" fn dc_context_set_logfunc(
context: *mut dc_context_t,
logfunc: dc_logfunc_t,
userdata: *mut c_void,
) -> dc_status_tpub unsafe extern "C" fn dc_context_set_logfunc(
context: *mut dc_context_t,
logfunc: dc_logfunc_t,
userdata: *mut c_void,
) -> dc_status_t