code: def is_close(a: float, b: float, epsilon: float = 1e-4) -> bool:
      return abs(a - b) <= epsilon
  
file_path: qlib/tests/rl/test_qlib_simulator.py
imports: import sys
  from pathlib import Path
  from typing import Tuple
  import pandas
  import pytest
  from qlib.backtest.decision import Order, OrderDir
  from qlib.backtest.executor import SimulatorExecutor
  from qlib.rl.order_execution import CategoricalActionInterpreter
  from qlib.rl.order_execution.simulator_qlib import SingleAssetOrderExecution
label_desc: Use image node_id 1 for calling a global function with example usage: is_close(a, b, epsilon) and returns: unknown