def __init__(self, mapper, progress_queue, progress_db):
    _ProgressThreadBase.__init__(self, progress_queue, progress_db)

    self.mapper = mapper
Initialize the MapperProgressThread instance.
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/bulkloader.py/MapperProgressThread.__init__