Mark QaNet test as flaky (#2481)

* Mark QaNet test as flaky

* Import the decorator 🤦

Author: matt-gardner

allennlp/tests/models/reading_comprehension/qanet_test.py

@@ -1,6 +1,8 @@
 # pylint: disable=no-self-use,invalid-name
+from flaky import flaky
 import numpy
 from numpy.testing import assert_almost_equal
+
 from allennlp.common import Params
 from allennlp.data import DatasetReader, Vocabulary
 from allennlp.common.testing import ModelTestCase
@@ -39,6 +41,7 @@ def test_forward_pass_runs_correctly(self):
         assert span_end < self.instances[0].fields['passage'].sequence_length()
         assert isinstance(output_dict['best_span_str'][0], str)
 
+    @flaky
     def test_model_can_train_save_and_load(self):
         self.ensure_model_can_train_save_and_load(self.param_file, tolerance=1e-4)