code: def __call__(self, step: int, **kwargs: Any) -> None:
      with self.file_writer.as_default():
          super().__call__(step, **kwargs)
      self.file_writer.flush()
  
imports: from io import BytesIO
  from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Union
  import numpy
  import tensorflow
  from ..base import AnyNDArray, Parameter
  from ..models import BayesianModel
  from ..utilities import parameter_dict
  from .base import MonitorTask
label_desc: Use image node_id 2 for calling the ToTensorBoard obj's underlying member method code with example usage: obj.__call__(step) without return types