Response format is ignored when using FoundationModel

[superx3man]

TLDR

Seems like response format doesn't change how we call the generate method in FoundationModelProvider.

Expected Result

let result = try await model.generate(
    messages: messages,
    model: .foundationModels,
    config: .default.responseFormat(.jsonObject)
)
response = try Foo(.init(json: result.text))

result.text should be in JSON format and would decode into Foo if provided structure.