code: 
  
  
  
  
  
  
  class 							_A :
      """simple docstring"""
  
      def __init__(							self			:    Optional[Any]			)			->       Any:
             __UpperCAmelCase    							=[0]
             __UpperCAmelCase    							=0
  
  
  
      def _a       (							self			:    Optional[Any]   ,    __SCREAMING_SNAKE_CASE			:    int			)			->       None:
             __UpperCAmelCase    							=self.__heap[i]
             while i // 2 > 0:
                    if self.__heap[i] > self.__heap[i // 2]:
                           __UpperCAmelCase    							=self.__heap[i // 2]
                           __UpperCAmelCase    							=temporary
                    i //= 2
  
  
  
      def _a       (							self			:    List[str]   ,    __SCREAMING_SNAKE_CASE			:    int			)			->       None:
             self.__heap.append(__SCREAMING_SNAKE_CASE			)
             self.__size += 1
             self.__swap_up(self.__size			)
  
  
  
      def _a       (							self			:    Any   ,    __SCREAMING_SNAKE_CASE			:    int			)			->       None:
             while self.__size >= 2 * i:
                    if 2 * i + 1 > self.__size:
                           __UpperCAmelCase    							=2 * i
                    else:
                           if self.__heap[2 * i] > self.__heap[2 * i + 1]:
                                  __UpperCAmelCase    							=2 * i
                           else:
                                  __UpperCAmelCase    							=2 * i + 1
                    __UpperCAmelCase    							=self.__heap[i]
                    if self.__heap[i] < self.__heap[bigger_child]:
                           __UpperCAmelCase    							=self.__heap[bigger_child]
                           __UpperCAmelCase    							=temporary
                    __UpperCAmelCase    							=bigger_child
  
  
  
      def _a       (							self			:    int			)			->       int:
             __UpperCAmelCase    							=self.__heap[1]
             __UpperCAmelCase    							=self.__heap[self.__size]
             self.__size -= 1
             self.__heap.pop()
             self.__swap_down(1			)
             return max_value
  
  
  
      @property
      def _a       (							self			:    List[str]			)			->       Optional[Any]:
             return self.__heap[1:]
  
  
  
      def __len__(							self			:    Optional[int]			)			->       List[str]:
             return self.__size
  
  
  if __name__ == "__main__":
     import doctest
  
     doctest.testmod()
     # create an instance of BinaryHeap
     __A  							=  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: 
  
  
  
  
  
  
  from collections import namedtuple
  
  __A  							=  namedtuple("from_to", "from_ to")
  
  __A  							=  {
      "millimeter": "mm",
      "centimeter": "cm",
      "meter": "m",
      "kilometer": "km",
      "inch": "in",
      "inche": "in",  # Trailing 's' has been stripped off
      "feet": "ft",
      "foot": "ft",
      "yard": "yd",
      "mile": "mi",
  }
  
  __A  							=  {
      "mm": from_to(0.001, 10_00),
      "cm": from_to(0.01, 1_00),
      "m": from_to(1, 1),
      "km": from_to(10_00, 0.001),
      "in": from_to(0.0254, 39.3701),
      "ft": from_to(0.3048, 3.2_8084),
      "yd": from_to(0.9144, 1.0_9361),
      "mi": from_to(1609.34, 0.0_0062_1371),
  }
  
  
  
  
  
  
  
  def 			lowercase__  (				A_:	float     ,			A_:	str     ,			A_:	str		)  ->							float:
  
  
  
  
  
  
  
         """simple docstring"""
  
  
  
  
  
  
         __UpperCAmelCase    							=from_type.lower().rstrip("""s"""		)
         __UpperCAmelCase    							=TYPE_CONVERSION.get(A_     ,			A_		)
         __UpperCAmelCase    							=to_type.lower().rstrip("""s"""		)
         __UpperCAmelCase    							=TYPE_CONVERSION.get(A_     ,			A_		)
         if new_from not in METRIC_CONVERSION:
                __UpperCAmelCase    							=(
                    F'''Invalid \'from_type\' value: {from_type!r}.\n'''
                    F'''Conversion abbreviations are: {", ".join(A_		)}'''
                )
                raise ValueError(A_		)
         if new_to not in METRIC_CONVERSION:
                __UpperCAmelCase    							=(
                    F'''Invalid \'to_type\' value: {to_type!r}.\n'''
                    F'''Conversion abbreviations are: {", ".join(A_		)}'''
                )
                raise ValueError(A_		)
         return value * METRIC_CONVERSION[new_from].from_ * METRIC_CONVERSION[new_to].to
  
  
  if __name__ == "__main__":
     import doctest
  
     doctest.testmod()
  
  
  
  
  