TethysBuilder doesn't produce json from Foldable

[NarekDW]

Example

def json[A: Loggable](a: A) = TethysBuilder(a)

@derive(loggable)
final case class X(field: String)

val result = json(List(X("value")))

Expected:

[{"field":"value"}]

Actual

{}

I think this issue occurs due to how fldLoggable is constructed, particularly in this part:

def fields[I, V, R, M](a: A, input: I)(implicit receiver: LogRenderer[I, V, R, M]): R = input.noop

I'm not sure how this could be fixed without introducing significant changes...