code: def generate_inputs(self):
      n = numpy.random.randint(3, size=self.shape).astype(numpy.int32)
      x = numpy.random.uniform(1.0, 10.0, self.shape).astype(self.dtype)
      return n, x
  
file_path: chainer/tests/chainer_tests/functions_tests/math_tests/test_polygamma.py
imports: import unittest
  import numpy
  import chainer
  import chainer.functions
  from chainer import testing
label_desc: Use image node_id 2 for calling the TestPolyGamma obj's underlying member method code with example usage: obj.generate_inputs() and returns: n,  x