code: def test_float_accessor():
      s = Stream.source([1, 2, 3, 4, 5])
  
      w = s.float.square().rename("w")
  
      assert_op([w], [1, 4, 9, 16, 25])
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_float_accessor() without return types