def get_period_alias(offset_str):
""" alias to closest period strings BQ->Q etc"""
return _offset_to_period_map.get(offset_str, None)
def get_period_alias(offset_str: str) -> Optional[str]:
"""
Alias to closest period strings BQ->Q etc.
"""
return _offset_to_period_map.get(offset_str, None)
def get_period_alias(offset_str):
""" alias to closest period strings BQ->Q etc"""
return _offset_to_period_map.get(offset_str, None)