code: def __init__(self, rng=None):
      try:
          import numpy as np
      except ImportError:
          msg = "numpy not found, only random.random available."
          warnings.warn(msg, ImportWarning)
  
      if rng is None:
          self._rng = np.random.mtrand._rand
      else:
          self._rng = rng
  
imports: import sys
  import uuid
  import warnings
  from collections import defaultdict, deque
  from collections.abc import Iterable, Iterator, Sized
  from itertools import chain, tee
  import networkx
label_desc: Use image node_id 1 to create a new PythonRandomInterface object  with example: obj = PythonRandomInterface(rng)