code: def setup(self):
      self._athena_client = MagicMock(name="AwsAthenaClient")
  
      self._athena = AthenaClient(
          logger=MagicMock(name="Logger"), client=self._athena_client
      )
  
imports: from datetime import datetime
  from dateutil.tz import tzlocal
  from mock import MagicMock
  from nose.tools import assert_equals, assert_true, assert_false
  from streamalert.scheduled_queries.handlers.athena import AthenaClient, AthenaQueryExecution, AthenaQueryResult
label_desc: Use image node_id 2 for calling the TestAthenaClient obj's underlying member method code with example usage: obj.setup() without return types