






from .integrations import (
    is_optuna_available,
    is_ray_available,
    is_sigopt_available,
    is_wandb_available,
    run_hp_search_optuna,
    run_hp_search_ray,
    run_hp_search_sigopt,
    run_hp_search_wandb,
)
from .trainer_utils import (
    HPSearchBackend,
    default_hp_space_optuna,
    default_hp_space_ray,
    default_hp_space_sigopt,
    default_hp_space_wandb,
)
from .utils import logging


__lowerCamelCase      :    int   		=   logging.get_logger(__name__)



class 							SCREAMING_SNAKE_CASE__		:





					"""simple docstring"""






					a_			=	42
					a_			=	None



					@staticmethod
					def  _lowercase  (      ):
						raise NotImplementedError



					def  _lowercase  (      self  :						str							,	__A  :						Tuple							,	__A  :						int							,	__A  :						str							,	**__A  :						Union[str, Any] ):
						raise NotImplementedError



					def  _lowercase  (      self  :						int							,	__A  :						int ):
						raise NotImplementedError



					def  _lowercase  (      self  :						Union[str, Any] ):
						if not self.is_available():
							raise RuntimeError(
							    f'''You picked the {self.name} backend, but it is not installed. Run {self.pip_install()}.''' )






					@classmethod
					def  _lowercase  (      cls  :						str ):
						return f'''`pip install {cls.pip_package or cls.name}`'''



class 							SCREAMING_SNAKE_CASE__		(       UpperCamelCase_		):





					"""simple docstring"""






					a_			=	"optuna"



					@staticmethod
					def  _lowercase  (      ):
						return is_optuna_available()



					def  _lowercase  (      self  :						Union[str, Any]							,	__A  :						List[str]							,	__A  :						int							,	__A  :						str							,	**__A  :						List[Any] ):
						return run_hp_search_optuna(__A							,	__A							,	__A							,	**__A )






					def  _lowercase  (      self  :						Any							,	__A  :						List[Any] ):
						return default_hp_space_optuna(__A )



class 							SCREAMING_SNAKE_CASE__		(       UpperCamelCase_		):





					"""simple docstring"""






					a_			=	"ray"
					a_			=	"'ray[tune]'"



					@staticmethod
					def  _lowercase  (      ):
						return is_ray_available()



					def  _lowercase  (      self  :						Optional[Any]							,	__A  :						Dict							,	__A  :						int							,	__A  :						str							,	**__A  :						List[Any] ):
						return run_hp_search_ray(__A							,	__A							,	__A							,	**__A )






					def  _lowercase  (      self  :						List[str]							,	__A  :						List[Any] ):
						return default_hp_space_ray(__A )



class 							SCREAMING_SNAKE_CASE__		(       UpperCamelCase_		):





					"""simple docstring"""






					a_			=	"sigopt"



					@staticmethod
					def  _lowercase  (      ):
						return is_sigopt_available()



					def  _lowercase  (      self  :						Optional[Any]							,	__A  :						str							,	__A  :						int							,	__A  :						str							,	**__A  :						List[str] ):
						return run_hp_search_sigopt(__A							,	__A							,	__A							,	**__A )






					def  _lowercase  (      self  :						Optional[Any]							,	__A  :						List[str] ):
						return default_hp_space_sigopt(__A )



class 							SCREAMING_SNAKE_CASE__		(       UpperCamelCase_		):





					"""simple docstring"""






					a_			=	"wandb"



					@staticmethod
					def  _lowercase  (      ):
						return is_wandb_available()



					def  _lowercase  (      self  :						str							,	__A  :						Optional[int]							,	__A  :						int							,	__A  :						str							,	**__A  :						Union[str, Any] ):
						return run_hp_search_wandb(__A							,	__A							,	__A							,	**__A )






					def  _lowercase  (      self  :						Optional[Any]							,	__A  :						int ):
						return default_hp_space_wandb(__A )
__lowerCamelCase      :    Union[str, Any]   		=   {
    HPSearchBackend(backend.name): backend for backend in [OptunaBackend, RayTuneBackend, SigOptBackend, WandbBackend]
}







def   SCREAMING_SNAKE_CASE       (				):
	snake_case__				:   Tuple     =						[backend for backend in ALL_HYPERPARAMETER_SEARCH_BACKENDS.values() if backend.is_available()]
	if len(snake_case_     ) > 0:
		snake_case__				:   Any     =						available_backends[0].name
		if len(snake_case_     ) > 1:
			logger.info(
			    F'''{len(snake_case_     )} hyperparameter search backends available. Using {name} as the default.'''     )
		return name
	raise RuntimeError(
	    "No hyperparameter search backend available.\n"
	    + "\n".join(
	        F''' - To install {backend.name} run {backend.pip_install()}'''
	        for backend in ALL_HYPERPARAMETER_SEARCH_BACKENDS.values()     )     )











def   SCREAMING_SNAKE_CASE       (				snake_case_      :							str     ):
	snake_case__				:   Any     =						[0] * len(snake_case_     )

	for i in range(1  ,						len(snake_case_     )     ):
		# use last results for better performance - dynamic programming
		snake_case__				:   Union[str, Any]     =						prefix_result[i - 1]
		while j > 0 and input_string[i] != input_string[j]:
			snake_case__				:   str     =						prefix_result[j - 1]

		if input_string[i] == input_string[j]:
			j += 1
		snake_case__				:   int     =						j

	return prefix_result







def   SCREAMING_SNAKE_CASE       (				snake_case_      :							str     ):
	return max(prefix_function(snake_case_     )     )


if __name__ == "__main__":
	import doctest

	doctest.testmod()



