docstr: Tests that the plugin is inactive when no relevant data exists.
docstr_tok: ["Tests","that","the","plugin","is","inactive","when","no","relevant","data","exists","."]
code: def testPluginIsNotActive(self):
      """Tests that the plugin is inactive when no relevant data exists."""
      empty_logdir = os.path.join(self.get_temp_dir(), "empty_logdir")
      multiplexer = event_multiplexer.EventMultiplexer()
      multiplexer.AddRunsFromDirectory(empty_logdir)
      multiplexer.Reload()
      context = base_plugin.TBContext(
          logdir=empty_logdir, multiplexer=multiplexer
      )
      plugin = pr_curves_plugin.PrCurvesPlugin(context)
      self.assertFalse(plugin.is_active())
  
imports: import collections.abc
  import functools
  import os.path
  import numpy
  import tensorflow
  from tensorboard import context
  from tensorboard.backend.event_processing import plugin_event_multiplexer
  from tensorboard.backend.event_processing import data_provider
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.pr_curve import pr_curve_demo
  from tensorboard.plugins.pr_curve import pr_curves_plugin
label_desc: Use image node_id 8 for calling the PrCurvesPluginTest obj's underlying member method code with example usage: obj.testPluginIsNotActive() without return types