code: def pytest_sessionstart(session):
      available_mem = session.config.getoption("available_memory")
      if available_mem is not None:
          os.environ["NPY_AVAILABLE_MEM"] = available_mem
  
file_path: catboost/contrib/python/numpy/py3/numpy/conftest.py
imports: import os
  import tempfile
  import hypothesis
  import pytest
  import numpy
  from numpy.core._multiarray_tests import get_fpu_mode
label_desc: Use image node_id 3 for calling a global function with example usage: pytest_sessionstart(session) without return types