docs: func (s *ReceiptAction) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "ReceiptAction"}
  	if s.AddHeaderAction != nil {
  		if err := s.AddHeaderAction.Validate(); err != nil {
  			invalidParams.AddNested("AddHeaderAction", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.BounceAction != nil {
  		if err := s.BounceAction.Validate(); err != nil {
  			invalidParams.AddNested("BounceAction", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.LambdaAction != nil {
  		if err := s.LambdaAction.Validate(); err != nil {
  			invalidParams.AddNested("LambdaAction", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.S3Action != nil {
  		if err := s.S3Action.Validate(); err != nil {
  			invalidParams.AddNested("S3Action", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.SNSAction != nil {
  		if err := s.SNSAction.Validate(); err != nil {
  			invalidParams.AddNested("SNSAction", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.StopAction != nil {
  		if err := s.StopAction.Validate(); err != nil {
  			invalidParams.AddNested("StopAction", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.WorkmailAction != nil {
  		if err := s.WorkmailAction.Validate(); err != nil {
  			invalidParams.AddNested("WorkmailAction", err.(request.ErrInvalidParams))
  		}
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }