'''simple docstring'''


from __future__ import annotations







def    _lowerCamelCase  (__lowerCamelCase  :     list     )   ->    List[Any]:



			if not nums:
						raise ValueError("List is empty"     )
			return sum(A__     ) / len(A__     )


if __name__ == "__main__":
		import doctest

		doctest.testmod()










'''simple docstring'''


def    _lowerCamelCase  (__lowerCamelCase  :     str     )   ->    bool:
			a__     = 0
			for ch in input_str:
						a__     = ord(__lowerCamelCase     )
						a__     = pow(2					,  __lowerCamelCase     )

						# If we already turned on bit for current character's unicode
						if bitmap >> ch_unicode & 1 == 1:
									return False
						bitmap |= ch_bit_index_on
			return True


if __name__ == "__main__":
		import doctest

		doctest.testmod()



