class_docstr: Unit tests for distributions in continuous.py 
docstr: Sets up unit tests. 
docstr_tok: ["Sets","up","unit","tests","."]
code: def setUp(self):
      """Sets up unit tests."""
      self.size = 100000
      self.threshold = 0.1
  
file_path: dragonfly/dragonfly/distributions/unittest_nuts.py
imports: from __future__ import absolute_import
  import unittest
  import numpy
  from .continuous import Normal, Beta, Exponential
  from ..utils.base_test_class import BaseTestClass, execute_tests
label_desc: Use image node_id 1 for calling the NutsTestCase obj's underlying member method code with example usage: obj.setUp() without return types