
# Lint as: python3

import hashlib
from typing import Union


def 		_lowerCamelCase       (   _a  ):
  """simple docstring"""




  if isinstance(_a			,   _a  ):
    # Data already in bytes, returns as it as
    return hash_data
  elif isinstance(_a			,   _a  ):
    # We keep the data as it as for it ot be later encoded to UTF-8
    # However replace `\\` with `/` for Windows compatibility
    _lowerCamelCase      =						hash_data.replace('''\\'''			,   '''/'''  )
  elif isinstance(_a			,   _a  ):
    _lowerCamelCase      =						str(_a  )
  else:
    # If data is not of the required type, raise error
    raise InvalidKeyError(_a  )

  return hash_data.encode('''utf-8'''  )

class 		__magic_name__				( lowercase_					):


  """simple docstring"""





  def __init__(					self	,		a__		):
    _lowerCamelCase      =						'''\nFAILURE TO GENERATE DATASET: Invalid key type detected'''
    _lowerCamelCase      =						f'''\nFound Key {hash_data} of type {type(a__		)}'''
    _lowerCamelCase      =						'''\nKeys should be either str, int or bytes type'''
    super().__init__(f'''{self.prefix}{self.err_msg}{self.suffix}'''		)







class 		__magic_name__				( lowercase_					):


  """simple docstring"""





  def __init__(					self	,		a__	,		a__	,		a__=""		):
    _lowerCamelCase      =						key
    _lowerCamelCase      =						duplicate_key_indices
    _lowerCamelCase      =						fix_msg
    _lowerCamelCase      =						'''Found multiple examples generated with the same key'''
    if len(a__		) <= 20:
      _lowerCamelCase      =						f'''\nThe examples at index {', '.join(a__		)} have the key {key}'''
    else:
      _lowerCamelCase      =						f'''\nThe examples at index {', '.join(duplicate_key_indices[:20]		)}... ({len(a__		) - 20} more) have the key {key}'''
    _lowerCamelCase      =						'''\n''' + fix_msg if fix_msg else ''''''
    super().__init__(f'''{self.prefix}{self.err_msg}{self.suffix}'''		)







class 		__magic_name__				:


  """simple docstring"""





  def __init__(					self	,		a__		):
    _lowerCamelCase      =						hashlib.mda(_as_bytes(a__		)		)


  def     _UpperCAmelCase  (					self	,		a__		):
    _lowerCamelCase      =						self._split_mda.copy()
    _lowerCamelCase      =						_as_bytes(a__		)
    mda.update(a__		)
    # Convert to integer with hexadecimal conversion
    return int(mda.hexdigest()	,		16		)






from __future__ import annotations

from collections.abc import Iterable
from dataclasses import dataclass
from typing import Any

class 		__magic_name__				:


  """simple docstring"""





  _UpperCamelCase						 = ("_front", "_back", "_len")

  @dataclass
  class 		__magic_name__				:


    """simple docstring"""





    _UpperCamelCase						 = None
    _UpperCamelCase						 = None
    _UpperCamelCase						 = None







  class 		__magic_name__				:


    """simple docstring"""





    _UpperCamelCase						 = ("_cur",)


    def __init__(					self	,		a__		):
      _lowerCamelCase      =						cur


    def __iter__(					self		):
      return self


    def     _UpperCAmelCase  (					self		):
      if self._cur is None:
        # finished iterating
        raise StopIteration
      _lowerCamelCase      =						self._cur.val
      _lowerCamelCase      =						self._cur.next_node

      return val







  def __init__(					self	,		a__ = None		):
    _lowerCamelCase      =						None
    _lowerCamelCase      =						None
    _lowerCamelCase      =						0

    if iterable is not None:
      # append every value to the deque
      for val in iterable:
        self.append(a__		)


  def     _UpperCAmelCase  (					self	,		a__		):
    _lowerCamelCase      =						self._Node(a__	,		a__	,		a__		)
    if self.is_empty():
      # front = back
      _lowerCamelCase      =						_lowerCamelCase      =						node
      _lowerCamelCase      =						1
    else:
      # connect nodes
      _lowerCamelCase      =						node
      _lowerCamelCase      =						self._back
      _lowerCamelCase      =						node  # assign new back to the new node

      self._len += 1

      # make sure there were no errors
      assert not self.is_empty(), "Error on appending value."


  def     _UpperCAmelCase  (					self	,		a__		):
    _lowerCamelCase      =						self._Node(a__	,		a__	,		a__		)
    if self.is_empty():
      # front = back
      _lowerCamelCase      =						_lowerCamelCase      =						node
      _lowerCamelCase      =						1
    else:
      # connect nodes
      _lowerCamelCase      =						self._front
      _lowerCamelCase      =						node
      _lowerCamelCase      =						node  # assign new front to the new node

      self._len += 1

      # make sure there were no errors
      assert not self.is_empty(), "Error on appending value."


  def     _UpperCAmelCase  (					self	,		a__		):
    for val in iterable:
      self.append(a__		)


  def     _UpperCAmelCase  (					self	,		a__		):
    for val in iterable:
      self.appendleft(a__		)


  def     _UpperCAmelCase  (					self		):
    assert not self.is_empty(), "Deque is empty."

    _lowerCamelCase      =						self._back
    _lowerCamelCase      =						self._back.prev_node  # set new back
    # drop the last node - python will deallocate memory automatically
    _lowerCamelCase      =						None

    self._len -= 1

    return topop.val


  def     _UpperCAmelCase  (					self		):
    assert not self.is_empty(), "Deque is empty."

    _lowerCamelCase      =						self._front
    _lowerCamelCase      =						self._front.next_node  # set new front and drop the first node
    _lowerCamelCase      =						None

    self._len -= 1

    return topop.val


  def     _UpperCAmelCase  (					self		):
    return self._front is None


  def __len__(					self		):
    return self._len


  def __eq__(					self	,		a__		):

    if not isinstance(a__	,		a__		):
      return NotImplemented

    _lowerCamelCase      =						self._front
    _lowerCamelCase      =						other._front

    # if the length of the dequeues are not the same, they are not equal
    if len(self		) != len(a__		):
      return False

    while me is not None and oth is not None:
      # compare every value
      if me.val != oth.val:
        return False
      _lowerCamelCase      =						me.next_node
      _lowerCamelCase      =						oth.next_node

    return True


  def __iter__(					self		):
    return Deque._Iterator(self._front		)


  def __repr__(					self		):
    _lowerCamelCase      =						[]
    _lowerCamelCase      =						self._front
    while aux is not None:
      # append the values in a list to display
      values_list.append(aux.val		)
      _lowerCamelCase      =						aux.next_node

    return f'''[{', '.join(repr(a__		) for val in values_list		)}]'''


if __name__ == "__main__":
  import doctest

  doctest.testmod()




