class_docstr: Test class for FirehoseClient
docstr: FirehoseClient - Categorize Records, None Enabled
code: def test_categorize_records_none_enabled(self):
      """FirehoseClient - Categorize Records, None Enabled"""
      payloads = self._sample_payloads
      result = self._client._categorize_records(payloads)
  
      assert_equal(dict(result), dict())
  
imports: from botocore.exceptions import ClientError
  from mock import Mock, patch
  from nose.tools import assert_equal
  from streamalert.shared.firehose import FirehoseClient
label_desc: Use image node_id 13 for calling the TestFirehoseClient obj's underlying member method code with example usage: obj.test_categorize_records_none_enabled() without return types