code: 
  
  """simple docstring"""
  
  
  
  
  class     __UpperCamelCase				:
  
  
  		def __init__(self				:	int):
  							A    =      [0]
  							A    =      0
  
  
  		def       SCREAMING_SNAKE_CASE__     (self				:	Optional[Any]  ,  __SCREAMING_SNAKE_CASE				:	int):
  							A    =      self.__heap[i]
  							while i // 2 > 0:
  												if self.__heap[i] > self.__heap[i // 2]:
  																	A    =      self.__heap[i // 2]
  																	A    =      temporary
  												i //= 2
  
  
  		def       SCREAMING_SNAKE_CASE__     (self				:	List[Any]  ,  __SCREAMING_SNAKE_CASE				:	int):
  							self.__heap.append(__SCREAMING_SNAKE_CASE)
  							self.__size += 1
  							self.__swap_up(self.__size)
  
  
  		def       SCREAMING_SNAKE_CASE__     (self				:	Any  ,  __SCREAMING_SNAKE_CASE				:	int):
  							while self.__size >= 2 * i:
  												if 2 * i + 1 > self.__size:
  																	A    =      2 * i
  												else:
  																	if self.__heap[2 * i] > self.__heap[2 * i + 1]:
  																						A    =      2 * i
  																	else:
  																						A    =      2 * i + 1
  												A    =      self.__heap[i]
  												if self.__heap[i] < self.__heap[bigger_child]:
  																	A    =      self.__heap[bigger_child]
  																	A    =      temporary
  												A    =      bigger_child
  
  
  		def       SCREAMING_SNAKE_CASE__     (self				:	Any):
  							A    =      self.__heap[1]
  							A    =      self.__heap[self.__size]
  							self.__size -= 1
  							self.__heap.pop()
  							self.__swap_down(1)
  							return max_value
  
  
  		@property
  		def       SCREAMING_SNAKE_CASE__     (self				:	int):
  							return self.__heap[1:]
  
  
  		def __len__(self				:	Optional[int]):
  							return self.__size
  
  
  if __name__ == "__main__":
  	import doctest
  
  	doctest.testmod()
  	# create an instance of BinaryHeap
  	__A  :					int												=	BinaryHeap()
  	binary_heap.insert(6)
  	binary_heap.insert(10)
  	binary_heap.insert(15)
  	binary_heap.insert(12)
  	# pop root(max-values because it is max heap)
  	print(binary_heap.pop())  # 15
  	print(binary_heap.pop())  # 12
  	# get the list and size after operations
  	print(binary_heap.get_list)
  	print(len(binary_heap))
  
  
  
  
  
  
style_context: 
  
  """simple docstring"""
  
  
  
  
  def      __SCREAMING_SNAKE_CASE		(		lowercase__   ):
  					"""simple docstring"""
  					if not isinstance(lowercase__    ,							lowercase__   ):
  										raise ValueError("double_factorial() only accepts integral values"   )
  					if n < 0:
  										raise ValueError("double_factorial() not defined for negative values"   )
  					return 1 if n <= 1 else n * double_factorial(n - 2   )
  
  
  if __name__ == "__main__":
  	import doctest
  
  	doctest.testmod()
  
  
  
  
  
  