code: func NewSectionBlock(textObj *TextBlockObject, fields []*TextBlockObject, accessory BlockElement) *SectionBlock {
  	return &SectionBlock{
  		Type:      mbtSection,
  		Text:      textObj,
  		Fields:    fields,
  		Accessory: accessory,
  	}
  }
docs: // NewSectionBlock returns a new instance of a section block to be rendered