YAML

!_Schema
types: !_Map_Type
  !_Identifier _Set: !_TypeDual
    allAlternates:
      - !_ObjectFor(_DualAlternate)
        collections:
          - !_ModifierTypeParam
            by: K
            modifierKind: !_ModifierKind Param
        object: _Dict
        typeParam: T
    name: _Set
    parent: !_DualBase
      dual: _Dict
      typeArgs:
        - !_TypeParam K
        - !_DualArg
          dual: Unit
    typeKind: !_TypeKind Dual
    typeParams:
      - !_Named
        name: K

Types

_Dual _Set

_{Type parameters:} $K

_Parent: _Dict<$K, Unit>

Alternates	Object
[$K]	_Dict