code: import json
  import os
  import shutil
  import tempfile
  import unittest
  
  from transformers.models.wavaveca import WavaVecaCTCTokenizer, WavaVecaFeatureExtractor, WavaVecaProcessor
  from transformers.models.wavaveca.tokenization_wavaveca import VOCAB_FILES_NAMES
  from transformers.utils import FEATURE_EXTRACTOR_NAME
  
  from .test_feature_extraction_wavaveca import floats_list
  
  class 						A__      (					unittest.TestCase			):
  
  
  
  
  
  
  
      """simple docstring"""
  
      def 	a_    ( self					):
           snake_case					=       '''<pad> <s> </s> <unk> | E T A O N I H S R D L U M W C F G Y P B V K \' X J Q Z'''.split(''' '''					)
           snake_case					=       dict(zip(snake_case_    ,      range(len(snake_case_					)					)					)					)
  
           snake_case					=       {
               '''pad_token''': '''<pad>''',
               '''unk_token''': '''<unk>''',
               '''bos_token''': '''<s>''',
               '''eos_token''': '''</s>''',
           }
           snake_case					=       {
               '''feature_size''': 1,
               '''padding_value''': 0.0,
               '''sampling_rate''': 1_6_0_0_0,
               '''return_attention_mask''': False,
               '''do_normalize''': True,
           }
  
           snake_case					=       tempfile.mkdtemp()
           snake_case					=       os.path.join(self.tmpdirname    ,      VOCAB_FILES_NAMES['''vocab_file''']					)
           snake_case					=       os.path.join(self.tmpdirname    ,      snake_case_					)
           with open(self.vocab_file    ,      '''w'''    ,      encoding='''utf-8'''					) as fp:
                fp.write(json.dumps(snake_case_					) + '''\n'''					)
  
           with open(self.feature_extraction_file    ,      '''w'''    ,      encoding='''utf-8'''					) as fp:
                fp.write(json.dumps(snake_case_					) + '''\n'''					)
      def 	a_    ( self    ,      **__snake_case					):
           snake_case					=       self.add_kwargs_tokens_map.copy()
           kwargs.update(snake_case_					)
           return WavaVecaCTCTokenizer.from_pretrained(self.tmpdirname    ,      **snake_case_					)
      def 	a_    ( self    ,      **__snake_case					):
           return WavaVecaFeatureExtractor.from_pretrained(self.tmpdirname    ,      **snake_case_					)
      def 	a_    ( self					):
           shutil.rmtree(self.tmpdirname					)
      def 	a_    ( self					):
           snake_case					=       self.get_tokenizer()
           snake_case					=       self.get_feature_extractor()
  
           snake_case					=       WavaVecaProcessor(tokenizer=snake_case_    ,      feature_extractor=snake_case_					)
  
           processor.save_pretrained(self.tmpdirname					)
           snake_case					=       WavaVecaProcessor.from_pretrained(self.tmpdirname					)
  
           self.assertEqual(processor.tokenizer.get_vocab()    ,      tokenizer.get_vocab()					)
           self.assertIsInstance(processor.tokenizer    ,      snake_case_					)
  
           self.assertEqual(processor.feature_extractor.to_json_string()    ,      feature_extractor.to_json_string()					)
           self.assertIsInstance(processor.feature_extractor    ,      snake_case_					)
      def 	a_    ( self					):
           snake_case					=       WavaVecaProcessor(tokenizer=self.get_tokenizer()    ,      feature_extractor=self.get_feature_extractor()					)
           processor.save_pretrained(self.tmpdirname					)
  
           snake_case					=       self.get_tokenizer(bos_token='''(BOS)'''    ,      eos_token='''(EOS)'''					)
           snake_case					=       self.get_feature_extractor(do_normalize=snake_case_    ,      padding_value=1.0					)
  
           snake_case					=       WavaVecaProcessor.from_pretrained(
               self.tmpdirname    ,      bos_token='''(BOS)'''    ,      eos_token='''(EOS)'''    ,      do_normalize=snake_case_    ,      padding_value=1.0					)
  
           self.assertEqual(processor.tokenizer.get_vocab()    ,      tokenizer_add_kwargs.get_vocab()					)
           self.assertIsInstance(processor.tokenizer    ,      snake_case_					)
  
           self.assertEqual(processor.feature_extractor.to_json_string()    ,      feature_extractor_add_kwargs.to_json_string()					)
           self.assertIsInstance(processor.feature_extractor    ,      snake_case_					)
      def 	a_    ( self					):
           snake_case					=       self.get_feature_extractor()
           snake_case					=       self.get_tokenizer()
  
           snake_case					=       WavaVecaProcessor(tokenizer=snake_case_    ,      feature_extractor=snake_case_					)
  
           snake_case					=       floats_list((3, 1_0_0_0)					)
  
           snake_case					=       feature_extractor(snake_case_    ,      return_tensors='''np'''					)
           snake_case					=       processor(snake_case_    ,      return_tensors='''np'''					)
  
           for key in input_feat_extract.keys():
                self.assertAlmostEqual(input_feat_extract[key].sum()    ,      input_processor[key].sum()    ,      delta=1E-2					)
      def 	a_    ( self					):
           snake_case					=       self.get_feature_extractor()
           snake_case					=       self.get_tokenizer()
  
           snake_case					=       WavaVecaProcessor(tokenizer=snake_case_    ,      feature_extractor=snake_case_					)
  
           snake_case					=       '''This is a test string'''
  
           snake_case					=       processor(text=snake_case_					)
  
           snake_case					=       tokenizer(snake_case_					)
  
           for key in encoded_tok.keys():
                self.assertListEqual(encoded_tok[key]    ,      encoded_processor[key]					)
      def 	a_    ( self					):
           snake_case					=       self.get_feature_extractor()
           snake_case					=       self.get_tokenizer()
  
           snake_case					=       WavaVecaProcessor(tokenizer=snake_case_    ,      feature_extractor=snake_case_					)
  
           snake_case					=       [[1, 4, 5, 8, 1, 0, 8], [3, 4, 3, 1, 1, 8, 9]]
  
           snake_case					=       processor.batch_decode(snake_case_					)
           snake_case					=       tokenizer.batch_decode(snake_case_					)
  
           self.assertListEqual(snake_case_    ,      snake_case_					)
  
  
  
  
      def 	a_    ( self					):
           snake_case					=       self.get_feature_extractor()
           snake_case					=       self.get_tokenizer()
  
           snake_case					=       WavaVecaProcessor(tokenizer=snake_case_    ,      feature_extractor=snake_case_					)
  
           self.assertListEqual(
               processor.model_input_names    ,      feature_extractor.model_input_names    ,      msg='''`processor` and `feature_extractor` model input names do not match'''    ,      )
  
  
  
  
  
style_context: 
  
  
  from __future__ import annotations
  
  import random
  from collections.abc import Iterable
  
  class 						A__      :
  
  
  
  
  
  
  
      """simple docstring"""
  
      def __init__( self    ,      __snake_case					):
           snake_case					=       {literal: None for literal in literals}
      def __str__( self					):
           return "{" + " , ".join(self.literals					) + "}"
      def __len__( self					):
           return len(self.literals					)
      def 	a_    ( self    ,      __snake_case					):
           for literal in self.literals:
                snake_case					=       literal[:2]
                if symbol in model:
                     snake_case					=       model[symbol]
                else:
                     continue
                if value is not None:
                     # Complement assignment if literal is in complemented form
                     if literal.endswith('''\''''					):
                          snake_case					=       not value
                snake_case					=       value
  
  
  
  
      def 	a_    ( self    ,      __snake_case					):
           for literal in self.literals:
                snake_case					=       literal.rstrip('''\''''					) if literal.endswith('''\''''					) else literal + '''\''''
                if symbol in self.literals:
                     return True
  
           self.assign(__snake_case					)
           for value in self.literals.values():
                if value in (True, None):
                     return value
           return any(self.literals.values()					)
  
  
  
  
  
  
  class 						A__      :
  
  
  
  
  
  
  
      """simple docstring"""
  
      def __init__( self    ,      __snake_case					):
           snake_case					=       list(__snake_case					)
  
  
  
  
      def __str__( self					):
           return "{" + " , ".join(str(__snake_case					) for clause in self.clauses					) + "}"
  
  
  
  
  
  
  def     UpperCAmelCase__		():
  
  
  
       """simple docstring"""
  
  
  
  
  
  
       snake_case					=       []
       snake_case					=       random.randint(1							,5       )
       snake_case					=       '''A'''
       snake_case					=       0
       while i < no_of_literals:
            snake_case					=       random.randint(1							,5       )
            snake_case					=       base_var + str(UpperCamelCase_       )
            snake_case					=       random.randint(0							,1       )
            if var_complement == 1:
                 var_name += "'"
            if var_name in literals:
                 i -= 1
            else:
                 literals.append(UpperCamelCase_       )
            i += 1
       return Clause(UpperCamelCase_       )
  def     UpperCAmelCase__		():
  
  
  
       """simple docstring"""
  
  
  
  
  
  
       snake_case					=       set()
       snake_case					=       random.randint(1							,10       )
       while len(UpperCamelCase_       ) < no_of_clauses:
            clauses.add(generate_clause()       )
       return Formula(UpperCamelCase_       )
  def     UpperCAmelCase__		(UpperCamelCase_       ):
  
  
  
       """simple docstring"""
  
  
  
  
  
  
       snake_case					=       formula.clauses
       snake_case					=       []
       for clause in formula.clauses:
            for literal in clause.literals:
                 snake_case					=       literal[:2]
                 if symbol not in symbols_set:
                      symbols_set.append(UpperCamelCase_       )
       return clauses, symbols_set
  def     UpperCAmelCase__		(UpperCamelCase_							,UpperCamelCase_							,UpperCamelCase_       ):
  
  
  
       """simple docstring"""
  
  
  
  
  
  
       snake_case					=       []
       snake_case					=       {}
       snake_case					=       []
  
       for clause in clauses:
            if clause.evaluate(UpperCamelCase_       ):
                 continue
            for literal in clause.literals:
                 literals.append(UpperCamelCase_       )
  
       for s in symbols:
            snake_case					=       s + '''\''''
            if (s in literals and sym not in literals) or (
                s not in literals and sym in literals
            ):
                 pure_symbols.append(UpperCamelCase_       )
       for p in pure_symbols:
            snake_case					=       None
       for s in pure_symbols:
            snake_case					=       s + '''\''''
            if s in literals:
                 snake_case					=       True
            elif sym in literals:
                 snake_case					=       False
       return pure_symbols, assignment
  def     UpperCAmelCase__		(UpperCamelCase_							,UpperCamelCase_       ):
  
  
  
       """simple docstring"""
  
  
  
  
  
  
       snake_case					=       []
       for clause in clauses:
            if len(UpperCamelCase_       ) == 1:
                 unit_symbols.append(list(clause.literals.keys()       )[0]       )
            else:
                 snake_case				,						snake_case					=       0, 0
                 for literal, value in clause.literals.items():
                      if value is False:
                           f_count += 1
                      elif value is None:
                           snake_case					=       literal
                           n_count += 1
                 if f_count == len(UpperCamelCase_       ) - 1 and n_count == 1:
                      unit_symbols.append(UpperCamelCase_       )
       snake_case					=       {}
       for i in unit_symbols:
            snake_case					=       i[:2]
            snake_case					=       len(UpperCamelCase_       ) == 2
       snake_case					=       [i[:2] for i in unit_symbols]
  
       return unit_symbols, assignment
  def     UpperCAmelCase__		(UpperCamelCase_							,UpperCamelCase_							,UpperCamelCase_       ):
  
  
  
       """simple docstring"""
  
  
  
  
  
  
       snake_case					=       True
       for clause in clauses:
            snake_case					=       clause.evaluate(UpperCamelCase_       )
            if clause_check is False:
                 return False, None
            elif clause_check is None:
                 snake_case					=       False
                 continue
  
       if check_clause_all_true:
            return True, model
  
       try:
            snake_case				,						snake_case					=       find_pure_symbols(UpperCamelCase_							,UpperCamelCase_							,UpperCamelCase_       )
       except RecursionError:
            print('''raises a RecursionError and is'''       )
            return None, {}
       snake_case					=       None
       if len(UpperCamelCase_       ) > 0:
            snake_case				,						snake_case					=       pure_symbols[0], assignment[pure_symbols[0]]
  
       if p:
            snake_case					=       model
            snake_case					=       value
            snake_case					=       list(UpperCamelCase_       )
            if p in tmp_symbols:
                 tmp_symbols.remove(UpperCamelCase_       )
            return dpll_algorithm(UpperCamelCase_							,UpperCamelCase_							,UpperCamelCase_       )
  
       snake_case				,						snake_case					=       find_unit_clauses(UpperCamelCase_							,UpperCamelCase_       )
       snake_case					=       None
       if len(UpperCamelCase_       ) > 0:
            snake_case				,						snake_case					=       unit_symbols[0], assignment[unit_symbols[0]]
       if p:
            snake_case					=       model
            snake_case					=       value
            snake_case					=       list(UpperCamelCase_       )
            if p in tmp_symbols:
                 tmp_symbols.remove(UpperCamelCase_       )
            return dpll_algorithm(UpperCamelCase_							,UpperCamelCase_							,UpperCamelCase_       )
       snake_case					=       symbols[0]
       snake_case					=       symbols[1:]
       snake_case				,						snake_case					=       model, model
       snake_case				,						snake_case					=       True, False
  
       return dpll_algorithm(UpperCamelCase_							,UpperCamelCase_							,UpperCamelCase_       ) or dpll_algorithm(UpperCamelCase_							,UpperCamelCase_							,UpperCamelCase_       )
  
  
  if __name__ == "__main__":
   import doctest
  
   doctest.testmod()
  
   _SCREAMING_SNAKE_CASE    :				Dict       =					generate_formula()
   print(f'''The formula {formula} is''', end=" ")
  
   _SCREAMING_SNAKE_CASE   ,     _SCREAMING_SNAKE_CASE    :				Any       =					generate_parameters(formula)
   _SCREAMING_SNAKE_CASE   ,     _SCREAMING_SNAKE_CASE    :				Optional[Any]       =					dpll_algorithm(clauses, symbols, {})
  
   if solution:
    print(f'''satisfiable with the assignment {model}.''')
   else:
    print("not satisfiable.")
  
  
  
  
  