



from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


__snake_case						:int						=					{
    '''configuration_bigbird_pegasus''': [
        '''BIGBIRD_PEGASUS_PRETRAINED_CONFIG_ARCHIVE_MAP''',
        '''BigBirdPegasusConfig''',
        '''BigBirdPegasusOnnxConfig''',
    ],
}

try:
	if not is_torch_available():
		raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
	pass
else:
	__snake_case						:Optional[Any]						=					[
	    '''BIGBIRD_PEGASUS_PRETRAINED_MODEL_ARCHIVE_LIST''',
	    '''BigBirdPegasusForCausalLM''',
	    '''BigBirdPegasusForConditionalGeneration''',
	    '''BigBirdPegasusForQuestionAnswering''',
	    '''BigBirdPegasusForSequenceClassification''',
	    '''BigBirdPegasusModel''',
	    '''BigBirdPegasusPreTrainedModel''',
	]


if TYPE_CHECKING:
	from .configuration_bigbird_pegasus import (
	    BIGBIRD_PEGASUS_PRETRAINED_CONFIG_ARCHIVE_MAP,
	    BigBirdPegasusConfig,
	    BigBirdPegasusOnnxConfig,
	)

	try:
		if not is_torch_available():
			raise OptionalDependencyNotAvailable()
	except OptionalDependencyNotAvailable:
		pass
	else:
		from .modeling_bigbird_pegasus import (
		    BIGBIRD_PEGASUS_PRETRAINED_MODEL_ARCHIVE_LIST,
		    BigBirdPegasusForCausalLM,
		    BigBirdPegasusForConditionalGeneration,
		    BigBirdPegasusForQuestionAnswering,
		    BigBirdPegasusForSequenceClassification,
		    BigBirdPegasusModel,
		    BigBirdPegasusPreTrainedModel,
		)


else:
	import sys

	__snake_case						:str						=					_LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)










def 					__snake_case     (      _UpperCAmelCase       ,			_UpperCAmelCase    ):

    def get_matched_characters(_UpperCAmelCase       ,			_UpperCAmelCase    ) -> str:
        __a							=    []
        __a							=    min(len(_stra    )       ,			len(_stra    )    ) // 2
        for i, l in enumerate(_stra    ):
            __a							=    int(max(0       ,			i - limit    )    )
            __a							=    int(min(i + limit + 1       ,			len(_stra    )    )    )
            if l in _stra[left:right]:
                matched.append(_UpperCAmelCase    )
                __a							=    f'{_stra[0:_stra.index(_UpperCAmelCase    )]} {_stra[_stra.index(_UpperCAmelCase    ) + 1:]}'

        return "".join(_UpperCAmelCase    )

    # matching characters
    __a							=    get_matched_characters(_UpperCAmelCase       ,			_UpperCAmelCase    )
    __a							=    get_matched_characters(_UpperCAmelCase       ,			_UpperCAmelCase    )
    __a							=    len(_UpperCAmelCase    )

    # transposition
    __a							=    (
        len([(ca, ca) for ca, ca in zip(_UpperCAmelCase       ,			_UpperCAmelCase    ) if ca != ca]    ) // 2
    )

    if not match_count:
        __a							=    0.0
    else:
        __a							=    (
            1
            / 3
            * (
                match_count / len(_UpperCAmelCase    )
                + match_count / len(_UpperCAmelCase    )
                + (match_count - transpositions) / match_count
            )
        )

    # common prefix up to 4 characters
    __a							=    0
    for ca, ca in zip(stra[:4]       ,			stra[:4]    ):
        if ca == ca:
            prefix_len += 1
        else:
            break

    return jaro + 0.1 * prefix_len * (1 - jaro)


if __name__ == "__main__":
 import doctest

 doctest.testmod()
 print(jaro_winkler('''hello''', '''world'''))





