code: def generate_inputs(self):
      x = numpy.random.uniform(3000, 7000, self.shape).astype(
          self.dtype
      )
      return (x,)
  
imports: import unittest
  import numpy
  import six
  from chainer import functions
  from chainer import testing
  from chainer.testing import attr
  from chainer import utils
label_desc: Use image node_id 2 for calling the TestAverageOverflowingSum obj's underlying member method code with example usage: obj.generate_inputs() and returns: x