code: func (fr *FileReport) IsCovered(row int) bool {
  	if fr == nil {
  		return false
  	}
  	for _, r := range fr.Covered {
  		if r.In(row) {
  			return true
  		}
  	}
  	return false
  }
docs: // IsCovered returns true if the row is marked as covered in the report.