classDiagram
frog --> "many" Servicer
frog --> "many" Contest
Servicer --> "many" Method


class frog {
    servicer_map
    context

    register_model(name,to_dict,from_dict)
    route(resopnse_model)
    add_route(servicer_name,func,resopnse_model)
    add_extra_fields(mapping_dict)
    load_server(server)
    generate_proto_file()
}

class Servicer {
    name
    add_method
    extra_fields
    func_method_map

    add_extra_fields()
    generate_proto_file()
}

class Method {
    name
    bind_servicer
    request_map
    response_map
    func
    get_message_body()
}

class ProtoTypeRecorder{
    pytype_proto_string_map 
    converter_pytype
    converter_proto
    message_2_pyObj(message)
    pyObj_2_message(py_obj)
    add_mapping(obj_type,proto_str)
}

class Contest{
    method
    request_message
    request_args_type_map
    response_data_type_map
}