class_docstr: Tests the main functions in the library.
class_docstr_tok: ["Tests","the","main","functions","in","the","library","."]
code: def setUp(self):
      super().setUp()
      num_runs, num_tasks = 5, 16
      self._x = np.arange(num_runs * num_tasks).reshape(
          num_runs, num_tasks
      )
      self._y = np.flip(self._x, axis=0)
      self._z = np.stack([self._x, 2 * self._x], axis=-1)
  
file_path: rliable/tests/rliable/library_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  import rliable.library
  import rliable.metrics
label_desc: Use image node_id 1 for calling the LibraryTest obj's underlying member method code with example usage: obj.setUp() without return types