class_docstr: Test class for FirehoseClient
docstr: FirehoseClient - Load From Config, Disabled
code: def test_load_from_config_disabled(self):
      """FirehoseClient - Load From Config, Disabled"""
      client = FirehoseClient.load_from_config(
          prefix="unit-test", firehose_config={}, log_sources=None
      )
      assert_equal(client, None)
  
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 26 for calling the TestFirehoseClient obj's underlying member method code with example usage: obj.test_load_from_config_disabled() without return types