ImportError: cannot import name 'TimeFrameUnit'

Trying this:

from alpaca_trade_api.rest import REST, TimeFrame, TimeFrameUnit

def hist_data_long(ticker):
data = api.get_bars(ticker, TimeFrame(45, TimeFrameUnit.Minute), “2021-06-08”, “2021-06-08”, adjustment=‘raw’).df
return data


Getting this:

Traceback (most recent call last):
File “C:\Programming\alpaca\alpaca_client.py”, line 4, in
from alpaca_trade_api.rest import REST, TimeFrame, TimeFrameUnit
ImportError: cannot import name ‘TimeFrameUnit’ from ‘alpaca_trade_api.rest’


By the way, on rest.py, the class is:

class TimeFrameUnit:
pass


I tried adding a new class from the SDK Github page:

class TimeFrameUnit(Enum):
Minute = “Min”
Hour = “Hour”
Day = “Day”


getting:

TypeError: Cannot extend enumerations


How do I approach it?