code: def test_dot():
      a = np.random.uniform(-3, 3, (3, 4))
      b = np.random.uniform(-3, 3, (4, 5))
      c = np.dot(a, b)
      A = mx.nd.array(a)
      B = mx.nd.array(b)
      C = mx.nd.dot(A, B)
      assert reldiff(c, C.asnumpy()) < 1e-5
  
imports: import os
  import mxnet
  import numpy
  import pickle
label_desc: Use image node_id 18 for calling a global function with example usage: test_dot() without return types