code: def testUniform(self):
      minval = 0.43
      maxval = 3.10
      shape = [13, 34, 29]
      atol = 0.1
      outputs = extensions.uniform(
          123, shape, minval=minval, maxval=maxval
      )
      self.assertAllClose(
          (minval + maxval) / 2.0, np.mean(outputs), atol=atol
      )
  
imports: import functools
  import itertools
  from absl import flags
  from absl.testing import parameterized
  from jax import lax
  import numpy
  import tensorflow.compat.v2
  from trax.tf_numpy import extensions
  import trax.tf_numpy.numpy
label_desc: Use image node_id 28 for calling the ExtensionsTest obj's underlying member method code with example usage: obj.testUniform() without return types