def load_model(plugin, model, weights, device):
    """
    Load OpenVino IR Models

    Input:
    Plugin = Hardware Accelerator IE Core
    Model = model_xml file 
    Weights = model_bin file

    Output:
    execution network (exec_net)
    """
    #  Read in Graph file (IR) to create network
    net = plugin.read_network(model, weights)
    # Load the Network using Plugin Device
    exec_net = plugin.load_network(network=net, device_name=device)
    return net, exec_net