Pact Foundation

When writing <https://github.com/ringods/pulumi-pact-poc/blob/50edb90931a6e71129530480a4632d42f12f82d0/single_resource_test.go#L29-L47|my grpc interaction>, what format am I actually using? This doesn’t seem to be according the <https://github.com/pact-foundation/pact-specification/tree/version-3|Pact v3 json file format> or <https://github.com/pact-foundation/pact-specification/tree/version-4|V4>. Is there any documentation on what I have to write in my Go pact test for protobufs? Still struggling to get something working. :pray:

My current problem is finding out how to get resolve this:
```2022-12-23T12:39:38.876907Z ERROR ThreadId(01) pact_ffi::plugins: Failed to call out to plugin - Request to configure interaction failed: Failed to process protobuf: Error: Expected a comma, got ')'
   ╭─[expression:1:17]
   │
 1 │ matching(boolean)
   ·                 ┬  
   ·                 ╰── Expected a comma before this
───╯```

<https://docs.pact.io/implementation_guides/pact_plugins/docs/matching-rule-definition-expressions#expressions|https://docs.pact.io/implementation_guides/pact_plugins/docs/matching-rule-definition-expressions#expressions>

Or false depending on what val you want :)

Thanks <@UELMFD9PG>, that seemed to be the documentation page I didn’t find.

My pleasure Ringo, yeah it probably needs to be more prominent and linked to example uses in code. 

I wonder if we could link to the expression guide in that error <@U5FCZAAUU>?

or it might just be simpler to improve the plugin getting started guide for users (not authors which we spent a little more the on recently)

I think the error message is really good, but obviously if you didn't know the language in the first place that doesn't help!