code: def validate_json_schema(self):
          
          errors = []
  
          for work in self:
              for task in work:
                  if not task.get_results().validate_json_schema():
                      errors.append(task)
              if not work.get_results().validate_json_schema():
                  errors.append(work)
          if not self.get_results().validate_json_schema():
              errors.append(self)
  
          return errors
docs: Validate the JSON schema. Return list of errors.