Adding conditional based matchers in LambdaDslObject

[durgamanasa]

Hello team,

We are trying to write Contract test for Async messages using Pact using Java.

We have the below object

"user": {
"id": "user1",
"email": "[email protected]"
}

We want to add the rule like when the "id" is "user1" then "email" field is mandatory. And if "id" is anything else apart from "user1" then "email" field is not mandatory. How can we achieve this using "LambdaDslObject"

Here is sample LambdaDslObject that we are setting
data.object(
USER,
user -> user.stringValue(ID, "user1"));