'''simple docstring'''

import logging
import os
import threading
import time


try:
  import warnings
except ImportError:
  UpperCamelCase__     :	Optional[int]				=			None

try:
  import msvcrt
except ImportError:
  UpperCamelCase__     :	Optional[Any]				=			None

try:
  import fcntl
except ImportError:
  UpperCamelCase__     :	List[str]				=			None


# Backward compatibility
# ------------------------------------------------
try:
  TimeoutError
except NameError:
  UpperCamelCase__     :	Optional[Any]				=			OSError


# Data
# ------------------------------------------------
UpperCamelCase__     :	List[Any]				=			[
    '''Timeout''',
    '''BaseFileLock''',
    '''WindowsFileLock''',
    '''UnixFileLock''',
    '''SoftFileLock''',
    '''FileLock''',
]

UpperCamelCase__     :	int				=			'''3.0.12'''


UpperCamelCase__     :	Dict				=			None







def __UpperCamelCase(   ):
   '''simple docstring'''
   global _logger
   UpperCAmelCase__							:				List[Any]   				=  _logger or logging.getLogger(__name__    )
   return _logger


class 				_lowercase	(      _UpperCAmelCase   ):
      '''simple docstring'''


      def __init__(				self					,lowerCamelCase_							)			->			Tuple:
         UpperCAmelCase__							:				List[Any]   				=  lock_file
         return None




      def __str__(				self							)			->			Tuple:
         UpperCAmelCase__							:				Optional[int]   				=  f'''The file lock \'{self.lock_file}\' could not be acquired.'''
         return temp




class 				_lowercase	:
      '''simple docstring'''


      def __init__(				self					,lowerCamelCase_							)			->			Any:
         UpperCAmelCase__							:				str   				=  lock
         return None




      def __enter__(				self							)			->			str:
         return self.lock




      def __exit__(				self					,lowerCamelCase_					,lowerCamelCase_					,lowerCamelCase_							)			->			List[str]:
         self.lock.release()
         return None




class 				_lowercase	:
      '''simple docstring'''


      def __init__(				self					,lowerCamelCase_					,lowerCamelCase_=-1					,lowerCamelCase_=None							)			->			Optional[Any]:
         UpperCAmelCase__							:				List[Any]   				=  max_filename_length if max_filename_length is not None else 255
         # Hash the filename if it's too long
         UpperCAmelCase__							:				Tuple   				=  self.hash_filename_if_too_long(__UpperCamelCase					,__UpperCamelCase							)
         # The path to the lock file.
         UpperCAmelCase__							:				Tuple   				=  lock_file

         # The file descriptor for the *_lock_file* as it is returned by the
         # os.open() function.
         # This file lock is only NOT None, if the object currently holds the
         # lock.
         UpperCAmelCase__							:				Dict   				=  None

         # The default timeout value.
         UpperCAmelCase__							:				Any   				=  timeout

         # We use this lock primarily for the lock counter.
         UpperCAmelCase__							:				Dict   				=  threading.Lock()

         # The lock counter is used for implementing the nested locking
         # mechanism. Whenever the lock is acquired, the counter is increased and
         # the lock is only released, when this value is 0 again.
         UpperCAmelCase__							:				str   				=  0
         return None




      @property
      def 		lowerCAmelCase__					(				self							)			->			Optional[Any]:
         return self._lock_file




      @property
      def 		lowerCAmelCase__					(				self							)			->			Any:
         return self._timeout




      @timeout.setter
      def 		lowerCAmelCase__					(				self					,lowerCamelCase_							)			->			int:
         UpperCAmelCase__							:				Optional[int]   				=  float(__UpperCamelCase							)
         return None




      def 		lowerCAmelCase__					(				self							)			->			List[Any]:
         raise NotImplementedError()




      def 		lowerCAmelCase__					(				self							)			->			str:
         raise NotImplementedError()




      @property
      def 		lowerCAmelCase__					(				self							)			->			int:
         return self._lock_file_fd is not None




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_=None					,lowerCamelCase_=0.05							)			->			Tuple:






         if timeout is None:
            UpperCAmelCase__							:				Tuple   				=  self.timeout

         # Increment the number right at the beginning.
         # We can still undo it, if something fails.
         with self._thread_lock:
            self._lock_counter += 1

         UpperCAmelCase__							:				Optional[int]   				=  id(self							)
         UpperCAmelCase__							:				str   				=  self._lock_file
         UpperCAmelCase__							:				List[str]   				=  time.time()
         try:
            while True:
               with self._thread_lock:
                  if not self.is_locked:
                     logger().debug(f'''Attempting to acquire lock {lock_id} on {lock_filename}'''							)
                     self._acquire()

               if self.is_locked:
                  logger().debug(f'''Lock {lock_id} acquired on {lock_filename}'''							)
                  break
               elif timeout >= 0 and time.time() - start_time > timeout:
                  logger().debug(f'''Timeout on acquiring lock {lock_id} on {lock_filename}'''							)
                  raise Timeout(self._lock_file							)
               else:
                  logger().debug(
                      f'''Lock {lock_id} not acquired on {lock_filename}, waiting {poll_intervall} seconds ...'''							)
                  time.sleep(__UpperCamelCase							)
         except:  # noqa
            # Something did go wrong, so decrement the counter.
            with self._thread_lock:
               UpperCAmelCase__							:				Union[str, Any]   				=  max(0					,self._lock_counter - 1							)

            raise
         return _Acquire_ReturnProxy(lock=self							)




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_=False							)			->			Dict:






         with self._thread_lock:
            if self.is_locked:
               self._lock_counter -= 1

               if self._lock_counter == 0 or force:
                  UpperCAmelCase__							:				Optional[int]   				=  id(self							)
                  UpperCAmelCase__							:				Optional[int]   				=  self._lock_file

                  logger().debug(f'''Attempting to release lock {lock_id} on {lock_filename}'''							)
                  self._release()
                  UpperCAmelCase__							:				List[str]   				=  0
                  logger().debug(f'''Lock {lock_id} released on {lock_filename}'''							)

         return None




      def __enter__(				self							)			->			Dict:
         self.acquire()
         return self




      def __exit__(				self					,lowerCamelCase_					,lowerCamelCase_					,lowerCamelCase_							)			->			Optional[Any]:
         self.release()
         return None




      def __del__(				self							)			->			Tuple:
         self.release(force=__UpperCamelCase							)
         return None




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_					,lowerCamelCase_							)			->			str:
         UpperCAmelCase__							:				int   				=  os.path.basename(__UpperCamelCase							)
         if len(__UpperCamelCase							) > max_length and max_length > 0:
            UpperCAmelCase__							:				Tuple   				=  os.path.dirname(__UpperCamelCase							)
            UpperCAmelCase__							:				List[str]   				=  str(hash(__UpperCamelCase							)							)
            UpperCAmelCase__							:				List[str]   				=  filename[: max_length - len(__UpperCamelCase							) - 8] + '''...''' + hashed_filename + '''.lock'''
            return os.path.join(__UpperCamelCase					,__UpperCamelCase							)
         else:
            return path




class 				_lowercase	(      _UpperCAmelCase   ):
      '''simple docstring'''


      def __init__(				self					,lowerCamelCase_					,lowerCamelCase_=-1					,lowerCamelCase_=None							)			->			int:
         from .file_utils import relative_to_absolute_path

         super().__init__(__UpperCamelCase					,timeout=__UpperCamelCase					,max_filename_length=__UpperCamelCase							)
         UpperCAmelCase__							:				int   				=  '''\\\\?\\''' + relative_to_absolute_path(self.lock_file							)




      def 		lowerCAmelCase__					(				self							)			->			List[Any]:
         UpperCAmelCase__							:				Tuple   				=  os.O_RDWR | os.O_CREAT | os.O_TRUNC

         try:
            UpperCAmelCase__							:				Optional[Any]   				=  os.open(self._lock_file					,__UpperCamelCase							)
         except OSError:
            pass
         else:
            try:
               msvcrt.locking(__UpperCamelCase					,msvcrt.LK_NBLCK					,1							)
            except OSError:
               os.close(__UpperCamelCase							)
            else:
               UpperCAmelCase__							:				str   				=  fd
         return None




      def 		lowerCAmelCase__					(				self							)			->			Tuple:
         UpperCAmelCase__							:				Union[str, Any]   				=  self._lock_file_fd
         UpperCAmelCase__							:				Dict   				=  None
         msvcrt.locking(__UpperCamelCase					,msvcrt.LK_UNLCK					,1							)
         os.close(__UpperCamelCase							)

         try:
            os.remove(self._lock_file							)
         # Probably another instance of the application
         # that acquired the file lock.
         except OSError:
            pass
         return None




class 				_lowercase	(      _UpperCAmelCase   ):
      '''simple docstring'''


      def __init__(				self					,lowerCamelCase_					,lowerCamelCase_=-1					,lowerCamelCase_=None							)			->			Any:
         UpperCAmelCase__							:				Optional[Any]   				=  os.statvfs(os.path.dirname(__UpperCamelCase							)							).f_namemax
         super().__init__(__UpperCamelCase					,timeout=__UpperCamelCase					,max_filename_length=__UpperCamelCase							)




      def 		lowerCAmelCase__					(				self							)			->			Tuple:
         UpperCAmelCase__							:				Optional[int]   				=  os.O_RDWR | os.O_CREAT | os.O_TRUNC
         UpperCAmelCase__							:				Dict   				=  os.open(self._lock_file					,__UpperCamelCase							)

         try:
            fcntl.flock(__UpperCamelCase					,fcntl.LOCK_EX | fcntl.LOCK_NB							)
         except OSError:
            os.close(__UpperCamelCase							)
         else:
            UpperCAmelCase__							:				int   				=  fd
         return None




      def 		lowerCAmelCase__					(				self							)			->			Optional[Any]:
         UpperCAmelCase__							:				List[Any]   				=  self._lock_file_fd
         UpperCAmelCase__							:				int   				=  None
         fcntl.flock(__UpperCamelCase					,fcntl.LOCK_UN							)
         os.close(__UpperCamelCase							)
         return None




class 				_lowercase	(      _UpperCAmelCase   ):
      '''simple docstring'''


      def 		lowerCAmelCase__					(				self							)			->			Optional[Any]:
         UpperCAmelCase__							:				int   				=  os.O_WRONLY | os.O_CREAT | os.O_EXCL | os.O_TRUNC
         try:
            UpperCAmelCase__							:				str   				=  os.open(self._lock_file					,__UpperCamelCase							)
         except OSError:
            pass
         else:
            UpperCAmelCase__							:				str   				=  fd
         return None




      def 		lowerCAmelCase__					(				self							)			->			List[str]:
         os.close(self._lock_file_fd							)
         UpperCAmelCase__							:				str   				=  None

         try:
            os.remove(self._lock_file							)
         # The file is already deleted and that's what we want.
         except OSError:
            pass
         return None




UpperCamelCase__     :	str				=			None

if msvcrt:
  UpperCamelCase__     :	Optional[int]				=			WindowsFileLock
elif fcntl:
  UpperCamelCase__     :	Tuple				=			UnixFileLock
else:
  UpperCamelCase__     :	Any				=			SoftFileLock

  if warnings is not None:
    warnings.warn('only soft file lock is available')





'''simple docstring'''

import torch

from transformers import AutoModel


class 				_lowercase	(      torch.nn.Module   ):
      '''simple docstring'''


      def __init__(				self					,lowerCamelCase_="sayef/fsner-bert-base-uncased"							)			->			Dict:



         '''simple docstring'''



         super(lowerCamelCase_					,self							).__init__()

         UpperCAmelCase__							:				Union[str, Any]   				=  AutoModel.from_pretrained(lowerCamelCase_					,return_dict=lowerCamelCase_							)
         UpperCAmelCase__							:				str   				=  torch.nn.CosineSimilarity(3					,1e-08							)
         UpperCAmelCase__							:				int   				=  torch.nn.Softmax(dim=1							)




      def 		lowerCAmelCase__					(				self					,**lowerCamelCase_							)			->			Optional[Any]:



         '''simple docstring'''



         return self.bert(**lowerCamelCase_							).last_hidden_state




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_							)			->			str:



         '''simple docstring'''



         return token_embeddings.sum(2					,keepdim=lowerCamelCase_							)




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_					,lowerCamelCase_					,lowerCamelCase_=1							)			->			int:



         '''simple docstring'''



         return self.softmax(T * self.cos(lowerCamelCase_					,lowerCamelCase_							)							)




      def 		lowerCAmelCase__					(				self					,lowerCamelCase_					,lowerCamelCase_							)			->			Tuple:



         '''simple docstring'''



         UpperCAmelCase__							:				List[Any]   				=  W_supports['''sizes'''].tolist()
         UpperCAmelCase__							:				Union[str, Any]   				=  W_supports['''start_token_id'''].item()
         UpperCAmelCase__							:				int   				=  W_supports['''end_token_id'''].item()

         del W_supports["sizes"]
         del W_supports["start_token_id"]
         del W_supports["end_token_id"]

         UpperCAmelCase__							:				Any   				=  self.BERT(**lowerCamelCase_							)
         UpperCAmelCase__							:				Any   				=  self.BERT(**lowerCamelCase_							)

         UpperCAmelCase__							:				Any   				=  None
         UpperCAmelCase__							:				Tuple   				=  None

         UpperCAmelCase__							:				Dict   				=  W_supports['''input_ids'''] == start_token_id
         UpperCAmelCase__							:				Any   				=  W_supports['''input_ids'''] == end_token_id

         for i, size in enumerate(lowerCamelCase_							):
            if i == 0:
               UpperCAmelCase__							:				int   				=  0
            else:
               UpperCAmelCase__							:				str   				=  support_sizes[i - 1]

            UpperCAmelCase__							:				Dict   				=  S[s : s + size][start_token_masks[s : s + size]]
            UpperCAmelCase__							:				Union[str, Any]   				=  S[s : s + size][end_token_masks[s : s + size]]

            UpperCAmelCase__							:				int   				=  torch.matmul(q[i]					,s_start.T							).sum(1							).softmax(0							)
            UpperCAmelCase__							:				int   				=  torch.matmul(q[i]					,s_end.T							).sum(1							).softmax(0							)

            if p_starts is not None:
               UpperCAmelCase__							:				str   				=  torch.vstack((p_starts, p_start)							)
               UpperCAmelCase__							:				Optional[int]   				=  torch.vstack((p_ends, p_end)							)
            else:
               UpperCAmelCase__							:				Union[str, Any]   				=  p_start
               UpperCAmelCase__							:				int   				=  p_end

         return p_starts, p_ends




