code: def test_uniform_mean_std():
      from lasagne.init import Uniform
  
      sample = Uniform(std=1.0, mean=5.0).sample((300, 400))
      assert 4.9 < sample.mean() < 5.1
      assert 0.9 < sample.std() < 1.1
  
imports: import pytest
label_desc: Use image node_id 7 for calling a global function with example usage: test_uniform_mean_std() without return types