knownValue property
      
      KnownViewerConfigRole?
      get
      knownValue
      
    
    
    
Implementation
KnownViewerConfigRole? get knownValue =>
    isKnownValue ? data as KnownViewerConfigRole : null;KnownViewerConfigRole? get knownValue =>
    isKnownValue ? data as KnownViewerConfigRole : null;