code: def __call__(self, *args, **kwds) -> tp.Union[float, tp.Tuple]:
      self.num_calls += 1
      if self.val is not None:
          return self.val if not self.multi else (self.val, self.val)
      return (
          np.random.rand()
          if not self.multi
          else (np.random.rand(), np.random.rand())
      )
  
imports: import time
  from pathlib import Path
  import logging
  import os
  import numpy
  import nevergrad
  import nevergrad.common.typing
  from .None import optimizerlib
  from .None import callbacks
label_desc: Use image node_id 2 for calling the _EarlyStoppingTestee obj's underlying member method code with example usage: obj.__call__() and returns: unknown, unknown