pub unsafe extern "C" fn ENGINE_set_load_ssl_client_cert_function(
e: *mut engine_st,
loadssl_f: Option<unsafe extern "C" fn(*mut engine_st, *mut ssl_st, *mut stack_st_X509_NAME, *mut *mut x509_st, *mut *mut evp_pkey_st, *mut *mut stack_st_X509, *mut ui_method_st, *mut c_void) -> i32>,
) -> i32