def METHOD_NAME():
    print("----- starting script -----")
    bte_node_pairs = get_bte_node_pairs()
    kg1_node_pairs = get_kg1_node_pairs()
    kg2_node_pairs = get_kg2_node_pairs()
    all_pairs = bte_node_pairs + kg1_node_pairs + kg2_node_pairs
    keys = all_pairs[0].keys()
    with open('kp_node_pairs.csv', 'w') as output_file:
        dw = csv.DictWriter(output_file, keys)
        dw.writeheader()
        dw.writerows(all_pairs)
    print("----- script finished -----")