code: def test_imperative_i2_o1():
      import nnabla.functions as F
  
      x0 = nn.NdArray([2, 3, 4])
      x1 = nn.NdArray([2, 1, 1])
      x0.fill(3)
      x1.fill(0.5)
      y = F.mul2(x0, x1)
      assert_allclose(y.data, 1.5)
  
imports: import numpy
  import nnabla
  from nnabla.testing import assert_allclose
label_desc: Use image node_id 2 for calling a global function with example usage: test_imperative_i2_o1() without return types