docstr: Conversion from graph to array to graph with nodelist.
code: def test_nodelist(self):
      """Conversion from graph to array to graph with nodelist."""
      P4 = path_graph(4)
      P3 = path_graph(3)
      nodelist = list(P3)
      A = nx.to_numpy_array(P4, nodelist=nodelist)
      GA = nx.Graph(A)
      self.assert_equal(GA, P3)
  
      # Make nodelist ambiguous by containing duplicates.
      nodelist += [nodelist[0]]
      pytest.raises(
          nx.NetworkXError, nx.to_numpy_array, P3, nodelist=nodelist
      )
  
      # Make nodelist invalid by including nonexistent nodes
      nodelist = [-1, 0, 1]
      with pytest.raises(
          nx.NetworkXError,
          match=f"Nodes {nodelist - P3.nodes} in nodelist is not in G",
      ):
          nx.to_numpy_array(P3, nodelist=nodelist)
  
imports: import pytest
  import networkx
  from networkx.generators.classic import barbell_graph, cycle_graph, path_graph
  from networkx.utils import graphs_equal
label_desc: Use image node_id 10 for calling the TestConvertNumpyArray obj's underlying member method code with example usage: obj.test_nodelist() without return types