fact: Definition GetAttribute2' {n} {attrs} : @DecTuple2 n attrs -> forall attr : @BoundedString _ (Vector.map attrName2 attrs), Domain2 (BuildHeading2 attrs) (ibound (indexb attr)) := fun t idx => ith2 t (ibound (indexb idx)).
imports: Coq.Lists.List Coq.Strings.String Coq.Logic.FunctionalExtensionality Coq.Sets.Ensembles Fiat.Common.ilist2 Fiat.Common.StringBound Coq.Program.Program Fiat.QueryStructure.Specification.Representation.Heading2 Fiat.Common.Ensembles.IndexedEnsembles Fiat.QueryStructure.Specification.Representation.Notations