Using tokens in alert messages, array fields

[jaskar]

In my search result, I have some arrays fields like this:
    data.protoPayload.request.spec.containers{}.image

`containers` field is an array which is a list of multiple dictionaries.

How can I include this into my alert messages? I've tried $result.data.protoPayload.request.spec.containers{}.image$ but this would not be rendered to a value.

Thanks in advance,