class_docstr: Discrete Domain. 
class_docstr_tok: ["Discrete","Domain","."]
docstr: Child set up. 
docstr_tok: ["Child","set","up","."]
code: def _child_set_up(self):
      """Child set up."""
      self.domain_obj = domains.DiscreteDomain(
          ["abc", 5, 6.5, int, "k"]
      )
      self.points = ["k", type(4), 6.5]
      self.non_points = ["ab", 75.8, "qwerty", None]
  
imports: from __future__ import absolute_import
  import numpy
  from .None import domains
  from ..utils.general_utils import map_to_bounds
  from ..utils.base_test_class import BaseTestClass, execute_tests
label_desc: Use image node_id 1 for calling the DiscreteDomainTestCase obj's underlying member method code with example usage: obj._child_set_up() without return types