pub unsafe extern "C" fn gst_mikey_payload_kemac_get_sub(
payload: *const GstMIKEYPayload,
idx: c_uint,
) -> *const GstMIKEYPayload
pub unsafe extern "C" fn gst_mikey_payload_kemac_get_sub(
payload: *const GstMIKEYPayload,
idx: c_uint,
) -> *const GstMIKEYPayload