code: def test_constant_initialize_repr(self):
      const_initializer = init.Constant(value=3)
      self.assertEqual("Constant(3)", str(const_initializer))
  
imports: import math
  from scipy import stats
  import numpy
  from neupy import init
  from neupy.init import identify_fans
  from base import BaseTestCase
label_desc: Use image node_id 2 for calling the ConstantInitializationTestCase obj's underlying member method code with example usage: obj.test_constant_initialize_repr() without return types