json - 如何在python中分配一个protobuf重复的复合字段？

Question

message SamplePosition {
    string barcode = 1;
    string position = 2;
    string requisition_id = 3;
}

message ArtifactCreated {
    Artifact artifact = 1;
    repeated SamplePosition samples = 2;
}

现在我的 YAML 文件中有一个 SamplePosition 数组，如下所示：

SamplePosition: 
[{barcode: A11000332319, position: D:3, requisition_id: OR0000000145}, {barcode: A11000332317, position: H:3, requisition_id: OR0000000145}]

如何将其分配给重复的复合字段？