code: def test_node_find_node():
      new_node = node.Node(
          name="0", category="TERMINAL", value=np.array(0)
      )
  
      assert new_node.find_node(0) == (None, True)
      assert new_node.find_node(1) == (None, False)
  
      new_node = node.Node(
          name="SUM", category="FUNCTION", value=np.array(0)
      )
  
      assert new_node.find_node(0) == (None, False)
      assert new_node.find_node(1) == (None, False)
  
imports: import numpy
  from opytimizer.core import node
label_desc: Use image node_id 23 for calling a global function with example usage: test_node_find_node() without return types