def METHOD_NAME(in_fp, out_fp):
    data = yaml.load(preprocess_yaml(in_fp.read()), Loader=Loader)
    if _already_migrated(data):
        return False
    for i in range(len(data)):
        data[i]["request"]["headers"] = _list_of_tuples_to_dict(data[i]["request"]["headers"])
    interactions = _migrate(data)
    out_fp.write(serialize(interactions, yamlserializer))
    return True