code: def _func(self, x: int, y: int) -> float:
      return x + y
  
file_path: nevergrad/nevergrad/benchmark/test_execution.py
imports: import numbers
  from operator import add
  import numpy
  import nevergrad
  import nevergrad.common.typing
  from nevergrad.common import testing
  from nevergrad.functions import ArtificialFunction
  from nevergrad.functions import ExperimentFunction
  from .None import execution
label_desc: Use image node_id 2 for calling the Function obj's underlying member method code with example usage: obj._func(x, y) and returns: unknown