Block constructor
      
      Block({ 
    
    
- String? blockType,
- BoundingPoly? boundingBox,
- double? confidence,
- List<Paragraph> ? paragraphs,
- TextProperty? property,
Implementation
Block({
  this.blockType,
  this.boundingBox,
  this.confidence,
  this.paragraphs,
  this.property,
});