class_docstr: This class tests the crypten.nn.tensorboard package.
code: def setUp(self) -> None:
      super().setUp()
      if self.rank >= 0:
          crypten.init()
  
file_path: CrypTen/test/test_tensorboard.py
imports: import unittest
  import crypten
  import crypten.nn.tensorboard
  from test.multiprocess_test_case import MultiProcessTestCase
label_desc: Use image node_id 1 for calling the TestTensorboard obj's underlying member method code with example usage: obj.setUp() without return types