def __init__(self):
self._key_key = '<STR_LIT>'<EOL>"""<STR_LIT>"""<EOL>self._key_date_start = '<STR_LIT>'<EOL>"""<STR_LIT>"""<EOL>self._key_date_end = '<STR_LIT>'<EOL>"""<STR_LIT>"""<EOL>self._map = {}<EOL>"""<STR_LIT>"""<EOL>self.pre_load_data()<EOL>
Object constructor.