code: def verify_float_arrays_are_equal(self, expected, actual):
      # We use an absolute error instead of a relative one because the expected
      # values are small. The default relative error (trol) of 1e-7 yields many
      # undesired test failures.
      np.testing.assert_allclose(expected, actual, rtol=0, atol=1e-7)
  
imports: import numpy
  import tensorflow
  from tensorboard.compat.proto import summary_pb2
  from tensorboard.plugins.pr_curve import metadata
  from tensorboard.plugins.pr_curve import summary
  from tensorboard.util import tensor_util
  from tensorboard.util import test_util
label_desc: Use image node_id 5 for calling the PrCurveTest obj's underlying member method code with example usage: obj.verify_float_arrays_are_equal(expected, actual) without return types