---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
/tmp/ipykernel_6602/2071313601.py in <module>
      2 
      3 from nixtlats import TimeGPT
----> 4 timegpt = TimeGPT(token=os.environ['TIMEGPT_TOKEN'])
      5 fcst_df = timegpt.forecast(df, h=24, level=[80, 90])

~/anaconda3/lib/python3.9/os.py in __getitem__(self, key)
    677         except KeyError:
    678             # raise KeyError with the original key value
--> 679             raise KeyError(key) from None
    680         return self.decodevalue(value)
    681 

KeyError: 'TIMEGPT_TOKEN'