class_docstr: State management when using AWS Step Functions
  
  The State of a step function is stored in a JSON blob that is passed from one State Machine
  state to the next. In states that execute Lambda functions, the state is passed in via the
  JSON event trigger.
code: def __init__(self, state_manager, logger, clock):
      self._state_manager = state_manager
      self._logger = logger
      self._clock = clock
  
file_path: streamalert/streamalert/scheduled_queries/state/state_manager.py
imports: from datetime import datetime
label_desc: Use image node_id 1 to create a new StepFunctionStateManager object  with example: obj = StepFunctionStateManager(state_manager, logger, clock)