docs: func (s *S3ReferenceDataSource) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "S3ReferenceDataSource"}
  	if s.BucketARN != nil && len(*s.BucketARN) < 1 {
  		invalidParams.Add(request.NewErrParamMinLen("BucketARN", 1))
  	}
  	if s.FileKey != nil && len(*s.FileKey) < 1 {
  		invalidParams.Add(request.NewErrParamMinLen("FileKey", 1))
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }