How can i create many pad_buffer_probe function for each sgie?

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) GPU
• DeepStream Version
• JetPack Version (valid for Jetson only)
• TensorRT Version 7.2.1

    # create an event loop and feed gstreamer bus mesages to it
    loop = GObject.MainLoop()
    bus = pipeline.get_bus()
    bus.connect("message", bus_call, loop)

    # Add a probe on the primary-infer source pad to get inference output tensors
    pgiesrcpad = pgie.get_static_pad("src")
    if not pgiesrcpad:
        sys.stderr.write(" Unable to get src pad of primary infer \n")

    pgiesrcpad.add_probe(Gst.PadProbeType.BUFFER, pgie_src_pad_buffer_probe, 0)

    embedding_calback = face_embedding.get_static_pad("src")
    if not embedding_calback:
        sys.stderr.write(" Unable to get sink pad of nvvidconv \n")

    embedding_calback.add_probe(Gst.PadProbeType.BUFFER, sgie_src_pad_buffer_probe, 0)

I have 2 custom nvinferserver, each nvinferserver do different task (pgie: detection, sgie: recognition).
After detection, i want to create sgie_src_pad_buffer_probe to process results.
How can i do?