code: func (s *Series) GetStartOk() (float64, bool) {
  	if s == nil || s.Start == nil {
  		return 0, false
  	}
  	return *s.Start, true
  }
docs: // GetStartOk returns a tuple with the Start field if it's non-nil, zero value otherwise
  // and a boolean to check if the value has been set.