from abc import ABC, abstractmethod
from typing import List, Optional

class       snake_case					(      UpperCamelCase_						):




  def __init__(      self     :	Tuple				)->       Optional[int]:




       """simple docstring"""
       # test for the above condition
       self.test()




  def 	__lowercase(      self     :	List[Any]				)->       Union[str, Any]:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				str			=		0
       SCREAMING_SNAKE_CASE__				:				Optional[Any]			=		False
       while not completed:
            if counter == 1:
                 self.reset()
            SCREAMING_SNAKE_CASE__				:				Tuple			=		self.advance()
            if not self.does_advance(a_				):
                 raise Exception(
                     'Custom Constraint is not defined correctly. self.does_advance(self.advance()) must be true.'				)

            SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__				:				Tuple			=		self.update(a_				)
            counter += 1

            if counter > 1_0000:
                 raise Exception('update() does not fulfill the constraint.'				)

       if self.remaining() != 0:
            raise Exception('Custom Constraint is not defined correctly.'				)




  @abstractmethod
  def 	__lowercase(      self     :	Optional[Any]				)->       Dict:




       """simple docstring"""
       raise NotImplementedError(
           F'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)




  @abstractmethod
  def 	__lowercase(      self     :	Union[str, Any]     , a_     :	int				)->       List[Any]:




       """simple docstring"""
       raise NotImplementedError(
           F'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)




  @abstractmethod
  def 	__lowercase(      self     :	List[Any]     , a_     :	int				)->       Union[str, Any]:




       """simple docstring"""
       raise NotImplementedError(
           F'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)




  @abstractmethod
  def 	__lowercase(      self     :	Dict				)->       Optional[int]:




       """simple docstring"""
       raise NotImplementedError(
           F'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)




  @abstractmethod
  def 	__lowercase(      self     :	Optional[Any]				)->       int:




       """simple docstring"""
       raise NotImplementedError(
           F'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)




  @abstractmethod
  def 	__lowercase(      self     :	Optional[Any]     , a_     :	Tuple=False				)->       Optional[int]:




       """simple docstring"""
       raise NotImplementedError(
           F'''{self.__class__} is an abstract class. Only classes inheriting this class can be called.'''				)




class       snake_case					(      UpperCamelCase_						):




  def __init__(      self     :	Union[str, Any]     , a_     :	List[int]				)->       Any:




       """simple docstring"""
       super(a_     , self				).__init__()

       if not isinstance(a_     , a_				) or len(a_				) == 0:
            raise ValueError(F'''`token_ids` has to be a non-empty list, but is {token_ids}.'''				)
       if any((not isinstance(a_     , a_				) or token_id < 0) for token_id in token_ids				):
            raise ValueError(F'''Each list in `token_ids` has to be a list of positive integers, but is {token_ids}.'''				)

       SCREAMING_SNAKE_CASE__				:				Optional[int]			=		token_ids

       SCREAMING_SNAKE_CASE__				:				List[str]			=		len(self.token_ids				)
       SCREAMING_SNAKE_CASE__				:				Dict			=		-1  # the index of the currently fulfilled step
       SCREAMING_SNAKE_CASE__				:				Any			=		False




  def 	__lowercase(      self     :	Optional[int]				)->       Optional[Any]:




       """simple docstring"""
       if self.completed:
            return None
       return self.token_ids[self.fulfilled_idx + 1]




  def 	__lowercase(      self     :	Union[str, Any]     , a_     :	int				)->       Union[str, Any]:




       """simple docstring"""
       if not isinstance(a_     , a_				):
            raise ValueError(F'''`token_id` has to be an `int`, but is {token_id} of type {type(a_				)}'''				)

       if self.completed:
            return False

       return token_id == self.token_ids[self.fulfilled_idx + 1]




  def 	__lowercase(      self     :	str     , a_     :	int				)->       Any:




       """simple docstring"""
       if not isinstance(a_     , a_				):
            raise ValueError(F'''`token_id` has to be an `int`, but is {token_id} of type {type(a_				)}'''				)

       SCREAMING_SNAKE_CASE__				:				Tuple			=		False
       SCREAMING_SNAKE_CASE__				:				List[str]			=		False
       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		False

       if self.does_advance(a_				):
            self.fulfilled_idx += 1
            SCREAMING_SNAKE_CASE__				:				Dict			=		True
            if self.fulfilled_idx == (self.seqlen - 1):
                 SCREAMING_SNAKE_CASE__				:				Dict			=		True
            SCREAMING_SNAKE_CASE__				:				int			=		completed
       else:
            # failed to make progress.
            SCREAMING_SNAKE_CASE__				:				Optional[int]			=		True
            self.reset()
       return stepped, completed, reset




  def 	__lowercase(      self     :	Union[str, Any]				)->       str:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Optional[int]			=		False
       SCREAMING_SNAKE_CASE__				:				Any			=		0




  def 	__lowercase(      self     :	List[str]				)->       Union[str, Any]:




       """simple docstring"""
       return self.seqlen - (self.fulfilled_idx + 1)




  def 	__lowercase(      self     :	Union[str, Any]     , a_     :	List[Any]=False				)->       Tuple:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				List[str]			=		PhrasalConstraint(self.token_ids				)

       if stateful:
            SCREAMING_SNAKE_CASE__				:				Optional[Any]			=		self.seqlen
            SCREAMING_SNAKE_CASE__				:				Optional[int]			=		self.fulfilled_idx
            SCREAMING_SNAKE_CASE__				:				str			=		self.completed

       return new_constraint




class       snake_case					:




  def __init__(      self     :	Tuple     , a_     :	List[List[int]]     , a_     :	Union[str, Any]=True				)->       Tuple:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				List[Any]			=		max([len(a_				) for one in nested_token_ids]				)

       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		{}
       for token_ids in nested_token_ids:
            SCREAMING_SNAKE_CASE__				:				List[Any]			=		root
            for tidx, token_id in enumerate(a_				):
                 if token_id not in level:
                      SCREAMING_SNAKE_CASE__				:				Optional[int]			=		{}

                 SCREAMING_SNAKE_CASE__				:				List[str]			=		level[token_id]

       if no_subsets and self.has_subsets(a_     , a_				):
            raise ValueError(
                'Each list in `nested_token_ids` can\'t be a complete subset of another list, but is'
                F''' {nested_token_ids}.'''				)

       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		root




  def 	__lowercase(      self     :	List[str]     , a_     :	Union[str, Any]				)->       Any:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		self.trie

       for current_token in current_seq:
            SCREAMING_SNAKE_CASE__				:				Optional[Any]			=		start[current_token]

       SCREAMING_SNAKE_CASE__				:				str			=		list(start.keys()				)

       return next_tokens




  def 	__lowercase(      self     :	Optional[int]     , a_     :	Optional[int]				)->       str:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Optional[int]			=		self.next_tokens(a_				)

       return len(a_				) == 0




  def 	__lowercase(      self     :	Tuple     , a_     :	Dict				)->       Optional[Any]:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Any			=		list(root.values()				)
       if len(a_				) == 0:
            return 1
       else:
            return sum([self.count_leaves(a_				) for nn in next_nodes]				)




  def 	__lowercase(      self     :	str     , a_     :	List[str]     , a_     :	Optional[int]				)->       int:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Optional[int]			=		self.count_leaves(a_				)
       return len(a_				) != leaf_count




class       snake_case					(      UpperCamelCase_						):




  def __init__(      self     :	Tuple     , a_     :	List[List[int]]				)->       Optional[int]:




       """simple docstring"""
       super(a_     , self				).__init__()

       if not isinstance(a_     , a_				) or len(a_				) == 0:
            raise ValueError(F'''`nested_token_ids` has to be a non-empty list, but is {nested_token_ids}.'''				)
       if any(not isinstance(a_     , a_				) for token_ids in nested_token_ids				):
            raise ValueError(F'''`nested_token_ids` has to be a list of lists, but is {nested_token_ids}.'''				)
       if any(
           any((not isinstance(a_     , a_				) or token_id < 0) for token_id in token_ids				)
           for token_ids in nested_token_ids				):
            raise ValueError(
                F'''Each list in `nested_token_ids` has to be a list of positive integers, but is {nested_token_ids}.'''				)

       SCREAMING_SNAKE_CASE__				:				Dict			=		DisjunctiveTrie(a_				)
       SCREAMING_SNAKE_CASE__				:				Tuple			=		nested_token_ids

       SCREAMING_SNAKE_CASE__				:				Any			=		self.trie.max_height
       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		[]
       SCREAMING_SNAKE_CASE__				:				List[str]			=		False




  def 	__lowercase(      self     :	List[Any]				)->       Union[str, Any]:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		self.trie.next_tokens(self.current_seq				)

       if len(a_				) == 0:
            return None
       else:
            return token_list




  def 	__lowercase(      self     :	List[str]     , a_     :	int				)->       str:




       """simple docstring"""
       if not isinstance(a_     , a_				):
            raise ValueError(F'''`token_id` is supposed to be type `int`, but is {token_id} of type {type(a_				)}'''				)

       SCREAMING_SNAKE_CASE__				:				List[Any]			=		self.trie.next_tokens(self.current_seq				)

       return token_id in next_tokens




  def 	__lowercase(      self     :	Tuple     , a_     :	int				)->       List[str]:




       """simple docstring"""
       if not isinstance(a_     , a_				):
            raise ValueError(F'''`token_id` is supposed to be type `int`, but is {token_id} of type {type(a_				)}'''				)

       SCREAMING_SNAKE_CASE__				:				int			=		False
       SCREAMING_SNAKE_CASE__				:				List[str]			=		False
       SCREAMING_SNAKE_CASE__				:				Dict			=		False

       if self.does_advance(a_				):
            self.current_seq.append(a_				)
            SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		True
       else:
            SCREAMING_SNAKE_CASE__				:				List[str]			=		True
            self.reset()

       SCREAMING_SNAKE_CASE__				:				Tuple			=		self.trie.reached_leaf(self.current_seq				)
       SCREAMING_SNAKE_CASE__				:				Tuple			=		completed

       return stepped, completed, reset




  def 	__lowercase(      self     :	Tuple				)->       str:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Tuple			=		False
       SCREAMING_SNAKE_CASE__				:				Dict			=		[]




  def 	__lowercase(      self     :	Union[str, Any]				)->       str:




       """simple docstring"""
       if self.completed:
            # since this can be completed without reaching max height
            return 0
       else:
            return self.seqlen - len(self.current_seq				)




  def 	__lowercase(      self     :	Tuple     , a_     :	List[Any]=False				)->       Union[str, Any]:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				List[str]			=		DisjunctiveConstraint(self.token_ids				)

       if stateful:
            SCREAMING_SNAKE_CASE__				:				List[Any]			=		self.seqlen
            SCREAMING_SNAKE_CASE__				:				List[Any]			=		self.current_seq
            SCREAMING_SNAKE_CASE__				:				Any			=		self.completed

       return new_constraint




class       snake_case					:




  def __init__(      self     :	Any     , a_     :	List[Constraint]				)->       Optional[Any]:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Optional[int]			=		constraints

       # max # of steps required to fulfill a given constraint
       SCREAMING_SNAKE_CASE__				:				Any			=		max([c.seqlen for c in constraints]				)
       SCREAMING_SNAKE_CASE__				:				Dict			=		len(a_				)
       SCREAMING_SNAKE_CASE__				:				Optional[Any]			=		False

       self.init_state()




  def 	__lowercase(      self     :	Union[str, Any]				)->       Any:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				str			=		[]
       SCREAMING_SNAKE_CASE__				:				Optional[Any]			=		None
       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		[constraint.copy(stateful=a_				) for constraint in self.constraints]




  def 	__lowercase(      self     :	int				)->       Optional[int]:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		0
       if self.inprogress_constraint:
            # extra points for having a constraint mid-fulfilled
            add += self.max_seqlen - self.inprogress_constraint.remaining()

       return (len(self.complete_constraints				) * self.max_seqlen) + add




  def 	__lowercase(      self     :	List[Any]				)->       int:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				str			=		[]
       if self.inprogress_constraint is None:
            for constraint in self.pending_constraints:  # "pending" == "unfulfilled yet"
                 SCREAMING_SNAKE_CASE__				:				str			=		constraint.advance()
                 if isinstance(a_     , a_				):
                      token_list.append(a_				)
                 elif isinstance(a_     , a_				):
                      token_list.extend(a_				)
       else:
            SCREAMING_SNAKE_CASE__				:				List[str]			=		self.inprogress_constraint.advance()
            if isinstance(a_     , a_				):
                 token_list.append(a_				)
            elif isinstance(a_     , a_				):
                 token_list.extend(a_				)

       if len(a_				) == 0:
            return None
       else:
            return token_list




  def 	__lowercase(      self     :	Tuple     , a_     :	Optional[List[int]]				)->       List[str]:




       """simple docstring"""
       self.init_state()

       if token_ids is not None:
            for token in token_ids:
                 # completes or steps **one** constraint
                 SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__				:				List[Any]			=		self.add(a_				)

                 # the entire list of constraints are fulfilled
                 if self.completed:
                      break




  def 	__lowercase(      self     :	List[str]     , a_     :	int				)->       Tuple:




       """simple docstring"""
       if not isinstance(a_     , a_				):
            raise ValueError(F'''`token_id` should be an `int`, but is `{token_id}`.'''				)

       SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__				:				Dict			=		False, False

       if self.completed:
            SCREAMING_SNAKE_CASE__				:				Any			=		True
            SCREAMING_SNAKE_CASE__				:				str			=		False
            return complete, stepped

       if self.inprogress_constraint is not None:
            # In the middle of fulfilling a constraint. If the `token_id` *does* makes an incremental progress to current
            # job, simply update the state

            SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__				:				Optional[int]			=		self.inprogress_constraint.update(a_				)
            if reset:
                 # 1. If the next token breaks the progress, then we must restart.
                 #     e.g. constraint = "I love pies" and sequence so far is "I love" but `token_id` == "books".

                 #     But that doesn't mean we self.init_state(), since we only reset the state for this particular
                 #     constraint, not the full list of constraints.

                 self.pending_constraints.append(self.inprogress_constraint.copy(stateful=a_				)				)
                 SCREAMING_SNAKE_CASE__				:				List[str]			=		None

            if complete:
                 # 2. If the next token completes the constraint, move it to completed list, set
                 #     inprogress to None. If there are no pending constraints either, then this full list of constraints
                 #     is complete.

                 self.complete_constraints.append(self.inprogress_constraint				)
                 SCREAMING_SNAKE_CASE__				:				Dict			=		None

                 if len(self.pending_constraints				) == 0:
                      # we're done!
                      SCREAMING_SNAKE_CASE__				:				Any			=		True

       else:
            # Not in the middle of fulfilling a constraint. So does this `token_id` helps us step towards any of our list
            # of constraints?

            for cidx, pending_constraint in enumerate(self.pending_constraints				):
                 if pending_constraint.does_advance(a_				):
                      SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__			,							SCREAMING_SNAKE_CASE__				:				Optional[int]			=		pending_constraint.update(a_				)

                      if not stepped:
                           raise Exception(
                               '`constraint.update(token_id)` is not yielding incremental progress, '
                               'even though `constraint.does_advance(token_id)` is true.'				)

                      if complete:
                           self.complete_constraints.append(a_				)
                           SCREAMING_SNAKE_CASE__				:				int			=		None

                      if not complete and stepped:
                           SCREAMING_SNAKE_CASE__				:				Any			=		pending_constraint

                      if complete or stepped:
                           # If we made any progress at all, then it's at least not a "pending constraint".

                           SCREAMING_SNAKE_CASE__				:				int			=		(
                               self.pending_constraints[:cidx] + self.pending_constraints[cidx + 1 :]
                           )

                           if len(self.pending_constraints				) == 0 and self.inprogress_constraint is None:
                                # If there's no longer any pending after this and no inprogress either, then we must be
                                # complete.

                                SCREAMING_SNAKE_CASE__				:				Dict			=		True

                           break  # prevent accidentally stepping through multiple constraints with just one token.

       return complete, stepped




  def 	__lowercase(      self     :	int     , a_     :	Optional[int]=True				)->       Optional[int]:




       """simple docstring"""
       SCREAMING_SNAKE_CASE__				:				Optional[Any]			=		ConstraintListState(self.constraints				)  # we actually never though self.constraints objects
       # throughout this process. So it's at initialization state.

       if stateful:
            SCREAMING_SNAKE_CASE__				:				Union[str, Any]			=		[
                constraint.copy(stateful=a_				) for constraint in self.complete_constraints
            ]
            if self.inprogress_constraint is not None:
                 SCREAMING_SNAKE_CASE__				:				Any			=		self.inprogress_constraint.copy(stateful=a_				)
            SCREAMING_SNAKE_CASE__				:				List[Any]			=		[constraint.copy() for constraint in self.pending_constraints]

       return new_state




from packaging import version

from .import_utils import is_accelerate_available


if is_accelerate_available():
      import accelerate







def     _a				(      lowercase__  :			List[str] ):







     '''simple docstring'''


     if not is_accelerate_available():
          return method
     SCREAMING_SNAKE_CASE__				:				str			=		version.parse(accelerate.__version__ ).base_version
     if version.parse(lowercase__ ) < version.parse('0.17.0' ):
          return method

     def wrapper(self  :			Optional[int]     ,  *lowercase__  :			int     ,  **lowercase__  :			Tuple ):
          if hasattr(self     ,  '_hf_hook' ) and hasattr(self._hf_hook     ,  'pre_forward' ):
               self._hf_hook.pre_forward(self )
          return method(self     ,  *lowercase__     ,  **lowercase__ )

     return wrapper



