tensorflow.core.example.feature_pb2.Feature类型数据解析

tensorflow.core.example.feature_pb2.Feature类型数据如下:
feature {
key: “week”
value {
int64_list {
value: 3315925259271475372
value: 8568172960370653437
}
}
这种格式怎么解析出来呢?例如怎么获取到3315925259271475372和3315925259271475372呢?