fact: Definition AttributeList {hHint : HeadingHint} := list (Attributes headingHint).
imports: Coq.Lists.List Coq.Strings.String Coq.Logic.FunctionalExtensionality Coq.Sets.Ensembles Fiat.Common.StringBound Fiat.QueryStructure.Specification.Representation.Notations Fiat.QueryStructure.Specification.Representation.Heading Fiat.QueryStructure.Specification.Representation.Tuple