code: func NewDiskUsageFormat(source string, verbose bool) Format {
  	switch {
  	case verbose && source == RawFormatKey:
  		format := `{{range .Images}}type: Image
  ` + NewImageFormat(source, false, true) + `
  {{end -}}
  {{range .Containers}}type: Container
  ` + NewContainerFormat(source, false, true) + `
  {{end -}}
  {{range .Volumes}}type: Volume
  ` + NewVolumeFormat(source, false) + `
  {{end -}}
  {{range .BuildCache}}type: Build Cache
  ` + NewBuildCacheFormat(source, false) + `
  {{end -}}`
  		return format
  	case !verbose && source == TableFormatKey:
  		return Format(defaultDiskUsageTableFormat)
  	case !verbose && source == RawFormatKey:
  		format := `type: {{.Type}}
  total: {{.TotalCount}}
  active: {{.Active}}
  size: {{.Size}}
  reclaimable: {{.Reclaimable}}
  `
  		return Format(format)
  	default:
  		return Format(source)
  	}
  }
docs: // NewDiskUsageFormat returns a format for rendering an DiskUsageContext