How to create `pbjson_types::Value` from `serde_json::Value`

Nobody has claimed this yet.

So I have a `serde_json::Value` and I want to convert it into a `pbjson_types::Value`. I need this because my proto file defines a field with the type `google.protobuf.Value`. I've looked through the source quite a bit and I'm really not sure how to do this. It seems like you can only build `pbjson_types::Value` from either primitive types, other `pbjson_types`, or a serde serializer.

My assumption was I'd be able to call something like `pbjson_types::Value::from(my_value)` and it'd just work if `my_value` implements serde Serialize, but that doesn't seem to be the case. So I've tried to convert it to `serde_json::Value` myself first, but there is still no way to convert from that to `pbjson_types::Value`.

I've read the other issues and some tests in the code but can't figure it out. So any help would be much appreciated.

Start by tracing the existing pbjson_types::Value constructors and serde serializer implementations mentioned in the issue, then review the related tests. Determine how serde_json::Value is expected to enter this conversion path and document or test the supported behavior; done means the requested conversion is clearly supported or its limitation is explicitly explained.

Written by the indexing model from the issue text.