The meta module contains: $(TOC opAAKey) $(TOC GetUniqueConstraintStructNames) $(TOC GetMembersWithUDA) $(TOC hasMembersWithUDA) $(TOC createConstraintStructs) $(TOC GetForeignKeys) $(TOC hasForeignKeys) $(TOC GetForeignKeyRefTable) $(TOC GetDefault) $(TOC hasDefault) $(TOC createForeignKeyPropertyConverter) $(TOC createForeignKeyProperties) $(TOC createForeignKeyCheckExceptions) $(TOC createForeignKeyChanged) $(TOC hasExclusionConstraints) $(TOC GetExclusionConstraints)
This is basically std.typecons.Nullable with extra features. This module contains: $(TOC isNullable) $(TOC Nullable)