def __init__(self, tracker_file_name=None, num_retries=None):
        self.tracker_file_name = tracker_file_name
        self.num_retries = num_retries
        self.server_has_bytes = 0  # Byte count at last server check.
        self.tracker_uri = None
        if tracker_file_name:
            self._load_tracker_uri_from_file()
        # Save upload_start_point in instance state so caller can find how
        # much was transferred by this ResumableUploadHandler (across retries).
        self.upload_start_point = None
Setup method.
dataset/ETHPy150Open radlab/sparrow/deploy/third_party/boto-2.1.1/boto/gs/resumable_upload_handler.py/ResumableUploadHandler.__init__--crossover with--dataset/ETHPy150Open aerospike/aerospike-client-python/test/old_tests/_test_list_get_range.py/TestListGetRange.setup_class