code: def test_insert(self):
      node = reverb_node.ReverbNode(
          priority_tables_fn=priority_tables_fn
      )
      test_address_builder.bind_addresses([node])
      threading.Thread(target=node.run).start()
  
      client = node.create_handle().dereference()
      client.insert([np.zeros((81, 81))], {_TABLE_NAME: 1})
  
      node._server.stop()
  
file_path: launchpad/launchpad/nodes/reverb/node_test.py
imports: import threading
  from unittest import mock
  from absl.testing import absltest
  from absl.testing import parameterized
  from launchpad import context
  from launchpad.launch.test_multi_threading import address_builder
  from launchpad.nodes.reverb import node
  import numpy
  import reverb
  from reverb import rate_limiters
label_desc: Use image node_id 1 for calling the ReverbNodeTest obj's underlying member method code with example usage: obj.test_insert() without return types