code: func (s *Scenario) LongestLine() int {
  	if s.longestLine == 0 {
  		s.longestLine = len("Scenario: " + s.Title)
  		for _, step := range s.Steps {
  			if l := len(string(step.Type) + " " + step.Text); l > s.longestLine {
  				s.longestLine = l
  			}
  		}
  	}
  	return s.longestLine
  }
docs: // LongestLine returns the longest step line in a scenario.