






def    a__    (	A       ):
   if not isinstance(A		,					A       ):
      raise ValueError("""Input series is not valid, valid series - [2, 4, 8]"""       )
   if len(A       ) == 0:
      raise ValueError("""Input list must be a non empty list"""       )
   if len(A       ) == 1:
      return True
   try:
      lowercase__    :						Any       =			series[1] / series[0]
      for index in range(len(A       ) - 1       ):
         if series[index + 1] / series[index] != common_ratio:
            return False
   except ZeroDivisionError:
      return False
   return True
def    a__    (	A       ):
   if not isinstance(A		,					A       ):
      raise ValueError("""Input series is not valid, valid series - [2, 4, 8]"""       )
   if len(A       ) == 0:
      raise ValueError("""Input list must be a non empty list"""       )
   lowercase__    :						Union[str, Any]       =			1
   for value in series:
      answer *= value
   return pow(A		,					1 / len(A       )       )


if __name__ == "__main__":
 import doctest

 doctest.testmod()










from datetime import date

import requests

a 			=							'https://api.carbonintensity.org.uk/intensity'
def    a__    (	):
   lowercase__    :						Union[str, Any]       =			requests.get(A       ).json()["""data"""][0]
   return last_half_hour["intensity"]["actual"]
def    a__    (	A		,					A       ):
   return requests.get(F'''{BASE_URL}/{start}/{end}'''       ).json()["data"]


if __name__ == "__main__":
 for entry in fetch_from_to(start=date(2020, 10, 1), end=date(2020, 10, 3)):
  print('from {from} to {to}: {intensity[actual]}'.format(**entry))
 print(F'{fetch_last_half_hour() = }')


