code: def accumulate(self, preds):
      for pred in preds:
          if getattr(pred.ground_truth, "filepath", None) is None:
              pred.ground_truth.filepath = "mock.png"
      return super().accumulate(preds)
  
imports: import functools
  from importlib import import_module
  from typing import Any, Dict, Optional
  from torch import Tensor
  from torch.utils.data import DataLoader, Sampler
  import flash
  from flash.core.adapter import Adapter
  from flash.core.data.io.input import DataKeys, InputBase
  from flash.core.data.io.input_transform import InputTransform, create_worker_input_transform_processor
  from flash.core.integrations.icevision.transforms import from_icevision_predictions, from_icevision_record, to_icevision_record
  from flash.core.integrations.icevision.wrappers import wrap_icevision_adapter
  from flash.core.model import Task
  from flash.core.utilities.imports import _ICEVISION_AVAILABLE
  from flash.core.utilities.stages import RunningStage
  from flash.core.utilities.url_error import catch_url_error
label_desc: Use image node_id 1 for calling the SimpleCOCOMetric obj's underlying member method code with example usage: obj.accumulate(preds) and returns: super