
'''simple docstring'''



from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_tf_available,
    is_tokenizers_available,
    is_torch_available,
)


_lowercase    =		{
    """configuration_funnel""": ["""FUNNEL_PRETRAINED_CONFIG_ARCHIVE_MAP""", """FunnelConfig"""],
    """convert_funnel_original_tf_checkpoint_to_pytorch""": [],
    """tokenization_funnel""": ["""FunnelTokenizer"""],
}

try:
						if not is_tokenizers_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						_lowercase    =		["""FunnelTokenizerFast"""]

try:
						if not is_torch_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						_lowercase    =		[
						    """FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST""",
						    """FunnelBaseModel""",
						    """FunnelForMaskedLM""",
						    """FunnelForMultipleChoice""",
						    """FunnelForPreTraining""",
						    """FunnelForQuestionAnswering""",
						    """FunnelForSequenceClassification""",
						    """FunnelForTokenClassification""",
						    """FunnelModel""",
						    """FunnelPreTrainedModel""",
						    """load_tf_weights_in_funnel""",
						]

try:
						if not is_tf_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						_lowercase    =		[
						    """TF_FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST""",
						    """TFFunnelBaseModel""",
						    """TFFunnelForMaskedLM""",
						    """TFFunnelForMultipleChoice""",
						    """TFFunnelForPreTraining""",
						    """TFFunnelForQuestionAnswering""",
						    """TFFunnelForSequenceClassification""",
						    """TFFunnelForTokenClassification""",
						    """TFFunnelModel""",
						    """TFFunnelPreTrainedModel""",
						]


if TYPE_CHECKING:
						from .configuration_funnel import FUNNEL_PRETRAINED_CONFIG_ARCHIVE_MAP, FunnelConfig
						from .tokenization_funnel import FunnelTokenizer

						try:
												if not is_tokenizers_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .tokenization_funnel_fast import FunnelTokenizerFast

						try:
												if not is_torch_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_funnel import (
												    FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST,
												    FunnelBaseModel,
												    FunnelForMaskedLM,
												    FunnelForMultipleChoice,
												    FunnelForPreTraining,
												    FunnelForQuestionAnswering,
												    FunnelForSequenceClassification,
												    FunnelForTokenClassification,
												    FunnelModel,
												    FunnelPreTrainedModel,
												    load_tf_weights_in_funnel,
												)

						try:
												if not is_tf_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_tf_funnel import (
												    TF_FUNNEL_PRETRAINED_MODEL_ARCHIVE_LIST,
												    TFFunnelBaseModel,
												    TFFunnelForMaskedLM,
												    TFFunnelForMultipleChoice,
												    TFFunnelForPreTraining,
												    TFFunnelForQuestionAnswering,
												    TFFunnelForSequenceClassification,
												    TFFunnelForTokenClassification,
												    TFFunnelModel,
												    TFFunnelPreTrainedModel,
												)

else:
						import sys

						_lowercase    =		_LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)


'''simple docstring'''



from __future__ import annotations




class   UpperCAmelCase_					:






						'''simple docstring'''






						def __init__( self   ,       _lowercase				):

												"""simple docstring"""



												_lowerCAmelCase  						=			order

												# a_{0} ... a_{k}
												_lowerCAmelCase  						=			[1.0] + [0.0] * order
												# b_{0} ... b_{k}
												_lowerCAmelCase  						=			[1.0] + [0.0] * order

												# x[n-1] ... x[n-k]
												_lowerCAmelCase  						=			[0.0] * self.order
												# y[n-1] ... y[n-k]
												_lowerCAmelCase  						=			[0.0] * self.order




						def  _lowercase     ( self   ,       _lowercase   ,       _lowercase				):

												"""simple docstring"""



												if len(_lowercase				) < self.order:
																		_lowerCAmelCase  						=			[1.0, *a_coeffs]

												if len(_lowercase				) != self.order + 1:
																		_lowerCAmelCase  						=			(
																		    F'Expected a_coeffs to have {self.order + 1} elements '
																		    F'for {self.order}-order filter, got {len(_lowercase				)}'
																		)
																		raise ValueError(_lowercase				)

												if len(_lowercase				) != self.order + 1:
																		_lowerCAmelCase  						=			(
																		    F'Expected b_coeffs to have {self.order + 1} elements '
																		    F'for {self.order}-order filter, got {len(_lowercase				)}'
																		)
																		raise ValueError(_lowercase				)

												_lowerCAmelCase  						=			a_coeffs
												_lowerCAmelCase  						=			b_coeffs




						def  _lowercase     ( self   ,       _lowercase				):

												"""simple docstring"""



												_lowerCAmelCase  						=			0.0

												# Start at index 1 and do index 0 at the end.
												for i in range(1   ,       self.order + 1				):
																		result += (
																		    self.b_coeffs[i] * self.input_history[i - 1]
																		    - self.a_coeffs[i] * self.output_history[i - 1]
																		)

												_lowerCAmelCase  						=			(result + self.b_coeffs[0] * sample) / self.a_coeffs[0]

												_lowerCAmelCase  						=			self.input_history[:-1]
												_lowerCAmelCase  						=			self.output_history[:-1]

												_lowerCAmelCase  						=			sample
												_lowerCAmelCase  						=			result

												return result
