code: def get_domainvalue(link):
      """
      Get a value in the domain for a given family.
      """
      z = -np.log(np.random.uniform(0, 1))
      if isinstance(link, links.CLogLog):  # prone to overflow
          z = min(z, 3)
      elif isinstance(link, links.LogLog):
          z = max(z, -3)
      elif isinstance(link, (links.NegativeBinomial, links.LogC)):
          # domain is negative numbers
          z = -z
      return z
  
file_path: statsmodels/statsmodels/genmod/families/tests/test_link.py
imports: import numpy
  from numpy.testing import assert_allclose, assert_equal, assert_array_less
  from scipy import stats
  import pytest
  import statsmodels.genmod.families
  from statsmodels.tools import numdiff
label_desc: Use image node_id 1 for calling a global function with example usage: get_domainvalue(link) and returns: z