ProducesDefaultResponseType equivalent for .Net 6 Minimal APIs

[agilenut]

I'm not sure if this feature request goes here or somewhere in dotnet but...

Can we have a Minimal API equivalent to ProducesDefaultResponseType? Something like:

app.MapGet("todos", TodoHandler.Handle)
    .Produces<Todo[]>()
    .ProducesDefault()
    .WithTags("Todos")
    .WithName("GetTodos");

which would result in the default swagger response being ProblemDetails, and

app.MapGet("todos", TodoHandler.Handle)
    .Produces<Todo[]>()
    .ProducesDefault<MyToDoErrors>()
    .WithTags("Todos")
    .WithName("GetTodos");

which would allow you to specify your own default response type.

[github-actions[bot]]

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