code: def get_obj(app_label, model_name, object_id):
      
      try:
          model = apps.get_model("{}.{}".format(app_label, model_name))
          assert is_valid_django_model(model), ("Model {}.{} do not exist.").format(
              app_label, model_name
          )
  
          obj = get_Object_or_None(model, pk=object_id)
          return obj
  
      except model.DoesNotExist:
          return None
      except LookupError:
          pass
      except ValidationError as e:
          raise ValidationError(e.__str__())
      except TypeError as e:
          raise TypeError(e.__str__())
      except Exception as e:
          raise Exception(e.__str__())
docs: Function used to get a object
      :param app_label: A valid Django Model or a string with format: <app_label>.<model_name>
      :param model_name: Key into kwargs that contains de data: new_person
      :param object_id:
      :return: instance