code: 
  
  
  
  '''simple docstring'''
  
  
  
  from typing import TYPE_CHECKING
  
  from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_tokenizers_available, is_torch_available
  
  
  a__						:			Dict										=			{
      'configuration_codegen': ['CODEGEN_PRETRAINED_CONFIG_ARCHIVE_MAP', 'CodeGenConfig', 'CodeGenOnnxConfig'],
      'tokenization_codegen': ['CodeGenTokenizer'],
  }
  
  try:
  	if not is_tokenizers_available():
  		raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
  	pass
  else:
  	a__						:			int										=			['CodeGenTokenizerFast']
  
  try:
  	if not is_torch_available():
  		raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
  	pass
  else:
  	a__						:			Dict										=			[
  	    'CODEGEN_PRETRAINED_MODEL_ARCHIVE_LIST',
  	    'CodeGenForCausalLM',
  	    'CodeGenModel',
  	    'CodeGenPreTrainedModel',
  	]
  
  if TYPE_CHECKING:
  	from .configuration_codegen import CODEGEN_PRETRAINED_CONFIG_ARCHIVE_MAP, CodeGenConfig, CodeGenOnnxConfig
  	from .tokenization_codegen import CodeGenTokenizer
  
  	try:
  		if not is_tokenizers_available():
  			raise OptionalDependencyNotAvailable()
  	except OptionalDependencyNotAvailable:
  		pass
  	else:
  		from .tokenization_codegen_fast import CodeGenTokenizerFast
  
  	try:
  		if not is_torch_available():
  			raise OptionalDependencyNotAvailable()
  	except OptionalDependencyNotAvailable:
  		pass
  	else:
  		from .modeling_codegen import (
  		    CODEGEN_PRETRAINED_MODEL_ARCHIVE_LIST,
  		    CodeGenForCausalLM,
  		    CodeGenModel,
  		    CodeGenPreTrainedModel,
  		)
  
  else:
  	import sys
  
  	a__						:			Union[str, Any]										=			_LazyModule(__name__, globals()['__file__'], _import_structure, module_spec=__spec__)
  
  
  
  
  
  
style_context: 
  
  
  
  '''simple docstring'''
  
  
  
  def _lowercase   (  __A							,__A       ):
  
  
  
   '''simple docstring'''
  
  
  
   __UpperCamelCase				      =  1
   while b > 0:
    if b & 1:
     res *= a
  
    a *= a
    b >>= 1
  
   return res
  
  
  
  
  
  
  
  def _lowercase   (  __A							,__A							,__A       ):
  
  
  
   '''simple docstring'''
  
  
  
   __UpperCamelCase				      =  1
   while b > 0:
    if b & 1:
     __UpperCamelCase				      =  ((res % c) * (a % c)) % c
  
    a *= a
    b >>= 1
  
   return res
  
  
  
  
  
  