def __init__(self, group_key_start=1, instance_key_start=100, instance_key_with_id_start=10000):
    'Initializes the object.\n\n    Args:\n      group_key_start: the starting integer of group key.\n      instance_key_start: the starting integer of instance key.\n      instance_key_with_id_start: the starting integer of instance key that is\n        recorded with an id.\n    '
    self._group_key = group_key_start
    self._group_key_table = dict()
    self._instance_key_id_to_key_table = dict()
    self._instance_key_with_id_counter = instance_key_with_id_start
    self._instance_key_start = instance_key_start
Initializes the object.

Args:
  group_key_start: the starting integer of group key.
  instance_key_start: the starting integer of instance key.
  instance_key_with_id_start: the starting integer of instance key that is
    recorded with an id.
def __init__(self, group_key_start=1, instance_key_start=100, instance_key_with_id_start=10000):
    'Initializes the object.\n\n    Args:\n      group_key_start: the starting integer of group key.\n      instance_key_start: the starting integer of instance key.\n      instance_key_with_id_start: the starting integer of instance key that is\n        recorded with an id.\n    '
    self._group_key = group_key_start
    self._group_key_table = dict()
    self._instance_key_id_to_key_table = dict()
    self._instance_key_with_id_counter = instance_key_with_id_start
    self._instance_key_start = instance_key_start