code: func NewWhisperAggregation() *WhisperAggregation {
  	return &WhisperAggregation{
  		Data: make([]*whisperAggregationItem, 0),
  		Default: &whisperAggregationItem{
  			name:                 "default",
  			pattern:              nil,
  			xFilesFactor:         0.5,
  			aggregationMethodStr: "average",
  			aggregationMethod:    whisper.Average,
  		},
  	}
  }
docs: // NewWhisperAggregation create instance of WhisperAggregation