code: def pytest_collection_modifyitems(items):
      for item in items:
          if item.nodeid.startswith("tests/distributions"):
              if "stage" not in item.keywords:
                  item.add_marker(pytest.mark.stage("unit"))
              if "init" not in item.keywords:
                  item.add_marker(pytest.mark.init(rng_seed=123))
  
imports: import math
  from math import pi
  import numpy
  import pytest
  import scipy.stats
  import pyro.distributions
  from pyro.distributions.testing.naive_dirichlet import NaiveBeta, NaiveDirichlet
  from pyro.distributions.testing.rejection_exponential import RejectionExponential
  from pyro.distributions.testing.rejection_gamma import ShapeAugmentedBeta, ShapeAugmentedDirichlet, ShapeAugmentedGamma
  from tests.distributions.dist_fixture import Fixture
label_desc: Use image node_id 4 for calling a global function with example usage: pytest_collection_modifyitems(items) without return types