






import re

from filelock import FileLock


try:
					import nltk

					__snake_case    :    Optional[Any]         =     True
except (ImportError, ModuleNotFoundError):
					__snake_case    :    Any         =     False

if NLTK_AVAILABLE:
					with FileLock(""".lock""") as lock:
										nltk.download("""punkt""", quiet=True)







def 	_UpperCamelCase   (    UpperCamelCase_       :					str		)  ->   str:

						"""simple docstring"""



						re.sub('<n>'    ,       ''    ,       _lowerCamelCase		)  # remove pegasus newline char
						assert NLTK_AVAILABLE, "nltk must be installed to separate newlines between sentences. (pip install nltk)"
						return "\n".join(nltk.sent_tokenize(_lowerCamelCase		)		)













from collections import deque

from .hash_table import HashTable


class     __SCREAMING_SNAKE_CASE					(   __lowercase):






						def __init__(	self     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												super().__init__(*_UpperCamelCase     ,						**_UpperCamelCase   )






						def       UpperCamelCase__      (	self     ,						_UpperCamelCase     ,						_UpperCamelCase   ):






												"""simple docstring"""
												lowerCAmelCase__    						=						deque([]   ) if self.values[key] is None else self.values[key]
												self.values[key].appendleft(_UpperCamelCase   )
												lowerCAmelCase__    						=						self.values[key]






						def       UpperCamelCase__      (	self   ):






												"""simple docstring"""
												return (
												    sum(self.charge_factor - len(_UpperCamelCase   ) for slot in self.values   )
												    / self.size_table
												    * self.charge_factor
												)







						def       UpperCamelCase__      (	self     ,						_UpperCamelCase     ,						_UpperCamelCase=None   ):






												"""simple docstring"""
												if not (
												    len(self.values[key]   ) == self.charge_factor and self.values.count(_UpperCamelCase   ) == 0
												):
																		return key
												return super()._collision_resolution(_UpperCamelCase     ,						_UpperCamelCase   )





