def METHOD_NAME(stream):
    """
    Starts one stream acquisition and return a Future
    Works with streams having only .is_active and .image .
    returns (Future that returns list of DataArray): the acquisition task
    """
    # Create a Future, not started yet
    future = SimpleStreamFuture(stream)
    # run in a separate thread
    executeAsyncTask(future, future._run)
    return future