Generic
data class Generic(val code: String, val message: String, val scope: RendererErrorMessage.Scope, val additional: Map<String, JsonElement> = emptyMap()) : RendererErrorMessage
Any other failure, attributed to exactly one of a surface or a function call.
additional carries keys outside the modelled ones: this is the one object in the v1.0 schemas that sets additionalProperties: true outright.