docs: func (s *BlackoutSlate) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "BlackoutSlate"}
  	if s.NetworkId != nil && len(*s.NetworkId) < 34 {
  		invalidParams.Add(request.NewErrParamMinLen("NetworkId", 34))
  	}
  	if s.BlackoutSlateImage != nil {
  		if err := s.BlackoutSlateImage.Validate(); err != nil {
  			invalidParams.AddNested("BlackoutSlateImage", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.NetworkEndBlackoutImage != nil {
  		if err := s.NetworkEndBlackoutImage.Validate(); err != nil {
  			invalidParams.AddNested("NetworkEndBlackoutImage", err.(request.ErrInvalidParams))
  		}
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }