from sklearn.metrics import fa_score

import datasets


a  :      Optional[int]            =    '\nThe F1 score is the harmonic mean of the precision and recall. It can be computed with the equation:\nF1 = 2 * (precision * recall) / (precision + recall)\n'


a  :      int            =    '\nArgs:\n    predictions (`list` of `int`): Predicted labels.\n    references (`list` of `int`): Ground truth labels.\n    labels (`list` of `int`): The set of labels to include when `average` is not set to `\'binary\'`, and the order of the labels if `average` is `None`. Labels present in the data can be excluded, for example to calculate a multiclass average ignoring a majority negative class. Labels not present in the data will result in 0 components in a macro average. For multilabel targets, labels are column indices. By default, all labels in `predictions` and `references` are used in sorted order. Defaults to None.\n    pos_label (`int`): The class to be considered the positive class, in the case where `average` is set to `binary`. Defaults to 1.\n    average (`string`): This parameter is required for multiclass/multilabel targets. If set to `None`, the scores for each class are returned. Otherwise, this determines the type of averaging performed on the data. Defaults to `\'binary\'`.\n\n        - \'binary\': Only report results for the class specified by `pos_label`. This is applicable only if the classes found in `predictions` and `references` are binary.\n        - \'micro\': Calculate metrics globally by counting the total true positives, false negatives and false positives.\n        - \'macro\': Calculate metrics for each label, and find their unweighted mean. This does not take label imbalance into account.\n        - \'weighted\': Calculate metrics for each label, and find their average weighted by support (the number of true instances for each label). This alters `\'macro\'` to account for label imbalance. This option can result in an F-score that is not between precision and recall.\n        - \'samples\': Calculate metrics for each instance, and find their average (only meaningful for multilabel classification).\n    sample_weight (`list` of `float`): Sample weights Defaults to None.\n\nReturns:\n    f1 (`float` or `array` of `float`): F1 score or list of f1 scores, depending on the value passed to `average`. Minimum possible value is 0. Maximum possible value is 1. Higher f1 scores are better.\n\nExamples:\n\n    Example 1-A simple binary example\n        >>> f1_metric = datasets.load_metric("f1")\n        >>> results = f1_metric.compute(references=[0, 1, 0, 1, 0], predictions=[0, 0, 1, 1, 0])\n        >>> print(results)\n        {\'f1\': 0.5}\n\n    Example 2-The same simple binary example as in Example 1, but with `pos_label` set to `0`.\n        >>> f1_metric = datasets.load_metric("f1")\n        >>> results = f1_metric.compute(references=[0, 1, 0, 1, 0], predictions=[0, 0, 1, 1, 0], pos_label=0)\n        >>> print(round(results[\'f1\'], 2))\n        0.67\n\n    Example 3-The same simple binary example as in Example 1, but with `sample_weight` included.\n        >>> f1_metric = datasets.load_metric("f1")\n        >>> results = f1_metric.compute(references=[0, 1, 0, 1, 0], predictions=[0, 0, 1, 1, 0], sample_weight=[0.9, 0.5, 3.9, 1.2, 0.3])\n        >>> print(round(results[\'f1\'], 2))\n        0.35\n\n    Example 4-A multiclass example, with different values for the `average` input.\n        >>> predictions = [0, 2, 1, 0, 0, 1]\n        >>> references = [0, 1, 2, 0, 1, 2]\n        >>> results = f1_metric.compute(predictions=predictions, references=references, average="macro")\n        >>> print(round(results[\'f1\'], 2))\n        0.27\n        >>> results = f1_metric.compute(predictions=predictions, references=references, average="micro")\n        >>> print(round(results[\'f1\'], 2))\n        0.33\n        >>> results = f1_metric.compute(predictions=predictions, references=references, average="weighted")\n        >>> print(round(results[\'f1\'], 2))\n        0.27\n        >>> results = f1_metric.compute(predictions=predictions, references=references, average=None)\n        >>> print(results)\n        {\'f1\': array([0.8, 0. , 0. ])}\n'


a  :      Dict            =    '\n@article{scikit-learn,\n    title={Scikit-learn: Machine Learning in {P}ython},\n    author={Pedregosa, F. and Varoquaux, G. and Gramfort, A. and Michel, V.\n           and Thirion, B. and Grisel, O. and Blondel, M. and Prettenhofer, P.\n           and Weiss, R. and Dubourg, V. and Vanderplas, J. and Passos, A. and\n           Cournapeau, D. and Brucher, M. and Perrot, M. and Duchesnay, E.},\n    journal={Journal of Machine Learning Research},\n    volume={12},\n    pages={2825--2830},\n    year={2011}\n}\n'

@datasets.utils.file_utils.add_start_docstrings(_DESCRIPTION ,  _KWARGS_DESCRIPTION			)
class 					_lowercase    (     datasets.Metric			):






    '''simple docstring'''




    def      _a    (    self ):
       return datasets.MetricInfo(
           description=_DESCRIPTION       ,						citation=_CITATION       ,						inputs_description=_KWARGS_DESCRIPTION       ,						features=datasets.Features(
               {
                   "predictions": datasets.Sequence(datasets.Value("int32" ) ),
                   "references": datasets.Sequence(datasets.Value("int32" ) ),
               }
               if self.config_name == "multilabel"
               else {
                   "predictions": datasets.Value("int32" ),
                   "references": datasets.Value("int32" ),
               } )       ,						reference_urls=["https://scikit-learn.org/stable/modules/generated/sklearn.metrics.f1_score.html"]       ,						)




    def      _a    (    self       ,						lowerCamelCase__       ,						lowerCamelCase__       ,						lowerCamelCase__=None       ,						lowerCamelCase__=1       ,						lowerCamelCase__="binary"       ,						lowerCamelCase__=None ):
       lowerCAmelCase_:							Any       =	fa_score(
           A_       ,						A_       ,						labels=A_       ,						pos_label=A_       ,						average=A_       ,						sample_weight=A_ )
       return {"f1": float(A_ ) if score.size == 1 else score}



"""simple docstring"""




__magic_name__						: Optional[Any]    =				'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'





def       a_ (	lowercase__ :bytes     ):
			# Make sure the supplied data is a bytes-like object
			if not isinstance(lowercase__,			lowercase__     ):
						__lowerCamelCase          =      f'a bytes-like object is required, not \'{data.__class__.__name__}\''
						raise TypeError(lowercase__     )

			__lowerCamelCase          =      """""".join(bin(lowercase__     )[2:].zfill(8     ) for byte in data     )

			__lowerCamelCase          =      len(lowercase__     ) % 6 != 0

			if padding_needed:
						# The padding that will be added later
						__lowerCamelCase          =      B"""=""" * ((6 - len(lowercase__     ) % 6) // 2)

						# Append binary_stream with arbitrary binary digits (0's by default) to make its
						# length a multiple of 6.
						binary_stream += "0" * (6 - len(lowercase__     ) % 6)
			else:
						__lowerCamelCase          =      B""""""

			# Encode every 6 binary digits to their corresponding Base64 character
			return (
			    "".join(
			        B64_CHARSET[int(binary_stream[index : index + 6],			2     )]
			        for index in range(0,			len(lowercase__     ),			6     )     ).encode()
			    + padding
			)





def       a_ (	lowercase__ :str     ):
			# Make sure encoded_data is either a string or a bytes-like object
			if not isinstance(lowercase__,			lowercase__     ) and not isinstance(lowercase__,			lowercase__     ):
						__lowerCamelCase          =      (
						    """argument should be a bytes-like object or ASCII string, """
						    f'not \'{encoded_data.__class__.__name__}\''
						)
						raise TypeError(lowercase__     )

			# In case encoded_data is a bytes-like object, make sure it contains only
			# ASCII characters so we convert it to a string object
			if isinstance(lowercase__,			lowercase__     ):
						try:
									__lowerCamelCase          =      encoded_data.decode("""utf-8"""     )
						except UnicodeDecodeError:
									raise ValueError("""base64 encoded data should only contain ASCII characters"""     )

			__lowerCamelCase          =      encoded_data.count("""="""     )

			# Check if the encoded string contains non base64 characters
			if padding:
						assert all(
						    char in B64_CHARSET for char in encoded_data[:-padding]     ), "Invalid base64 character(s) found."
			else:
						assert all(
						    char in B64_CHARSET for char in encoded_data     ), "Invalid base64 character(s) found."

			# Check the padding
			assert len(lowercase__     ) % 4 == 0 and padding < 3, "Incorrect padding"

			if padding:
						# Remove padding if there is one
						__lowerCamelCase          =      encoded_data[:-padding]

						__lowerCamelCase          =      """""".join(
						    bin(B64_CHARSET.index(lowercase__     )     )[2:].zfill(6     ) for char in encoded_data     )[: -padding * 2]
			else:
						__lowerCamelCase          =      """""".join(
						    bin(B64_CHARSET.index(lowercase__     )     )[2:].zfill(6     ) for char in encoded_data     )

			__lowerCamelCase          =      [
			    int(binary_stream[index : index + 8],			2     )
			    for index in range(0,			len(lowercase__     ),			8     )
			]

			return bytes(lowercase__     )


if __name__ == "__main__":
					import doctest

					doctest.testmod()




