code: def _tol_for_shots(shots):
      return 0.05 if shots else 1e-6
  
imports: import pytest
  from cachetools import LRUCache
  from param_shift_dev import ParamShiftDerivativesDevice
  import numpy
  import pennylane
  from pennylane.workflow.jacobian_products import JacobianProductCalculator, TransformJacobianProducts, DeviceDerivatives, DeviceJacobianProducts, LightningVJPs
label_desc: Use image node_id 3 for calling a global function with example usage: _tol_for_shots(shots) and returns: unknown