fact: Definition args_for_onelevel : TypeCode -> Type := args_for (fun A => option (onelevelG A)).
imports: Fiat.Parsers.Reflective.Syntax Fiat.Parsers.Reflective.Semantics Fiat.Parsers.Reflective.Syntactify Fiat.Common Fiat.Common.NatFacts Fiat.Common.List.Operations