code: def _bit_lo0(n):
      """Returns the position of the low 0 bit base 2 in an integer.
  
      Parameters
      ----------
      n : int
          Input, should be positive.
  
      """
      bin_repr = np.binary_repr(n)
      most_right_zero = bin_repr[::-1].find("0")
      if most_right_zero == -1:
          most_right_zero = len(bin_repr)
      return most_right_zero + 1
  
file_path: scikit-optimize/skopt/sampler/sobol.py
imports: from __future__ import division
  import warnings
  import numpy
  from .base import InitialPointGenerator
  from ..space import Space
  from sklearn.utils import check_random_state
label_desc: Use image node_id 2 for calling a global function with example usage: _bit_lo0(n) and returns: unknown