code: def around(val, interval=3):
      return slice(val - interval, val + interval)
  
file_path: MONAI/tests/test_lesion_froc.py
imports: from __future__ import annotations
  import os
  import unittest
  from unittest import skipUnless
  import numpy
  from parameterized import parameterized
  from monai.apps.pathology.metrics import LesionFROC
  from monai.utils import optional_import
label_desc: Use image node_id 2 for calling a global function with example usage: around(val, interval) and returns: slice