code: def example_input(self) -> str:
      with (Path(flash.ASSETS_ROOT) / "fish.jpg").open("rb") as f:
          return base64.b64encode(f.read()).decode("UTF-8")
  
imports: import base64
  from io import BytesIO
  from pathlib import Path
  from typing import Any, Dict, List
  import torch
  import flash
  from flash.core.data.io.input import DataKeys, Input, ServeInput
  from flash.core.data.utilities.loading import IMG_EXTENSIONS, NP_EXTENSIONS, load_image
  from flash.core.data.utilities.paths import PATH_TYPE, filter_valid_files
  from flash.core.data.utilities.samples import to_samples
  from flash.core.utilities.imports import _TORCHVISION_AVAILABLE, Image, requires
label_desc: Use image node_id 2 for calling the ImageDeserializer obj's underlying member method code with example usage: obj.example_input() and returns: base64