





import pytest

from datasets.splits import SplitDict, SplitInfo
from datasets.utils.py_utils import asdict


@pytest.mark.parametrize(
    '''split_dict'''					,	[
        SplitDict(),
        SplitDict({'''train''': SplitInfo(name='''train'''					,	num_bytes=13_37					,	num_examples=42					,	dataset_name='''my_dataset'''    )}    ),
        SplitDict({'''train''': SplitInfo(name='''train'''					,	num_bytes=13_37					,	num_examples=42    )}    ),
        SplitDict({'''train''': SplitInfo()}    ),
    ]					,	)
def       UpperCamelCase__(			UpperCamelCase__     :			SplitDict    )->Dict:
       A__		   =		split_dict._to_yaml_list()
       assert len(UpperCamelCase__    ) == len(UpperCamelCase__    )
       A__		   =		SplitDict._from_yaml_list(UpperCamelCase__    )
       for split_name, split_info in split_dict.items():
              # dataset_name field is deprecated, and is therefore not part of the YAML dump
              A__		   =		None
              # the split name of split_dict takes over the name of the split info object
              A__		   =		split_name
       assert split_dict == reloaded


@pytest.mark.parametrize(
    '''split_info'''					,	[SplitInfo(), SplitInfo(dataset_name=UpperCamelCase__    ), SplitInfo(dataset_name='''my_dataset'''    )]    )
def       UpperCamelCase__(			UpperCamelCase__     :			Union[str, Any]    )->str:
       # For backward compatibility, we need asdict(split_dict) to return split info dictrionaries with the "dataset_name"
       # field even if it's deprecated. This way old versionso of `datasets` can still reload dataset_infos.json files
       A__		   =		asdict(SplitDict({'''train''': split_info}    )    )
       assert "dataset_name" in split_dict_asdict["train"]
       assert split_dict_asdict["train"]["dataset_name"] == split_info.dataset_name












def       UpperCamelCase__(			UpperCamelCase__     :			str					,	UpperCamelCase__     :			str    )->str:
       assert x is not None
       assert y is not None

       A__		   =		len(UpperCamelCase__    )
       A__		   =		len(UpperCamelCase__    )

       # declaring the array for storing the dp values
       A__		   =		[[0] * (n + 1) for _ in range(m + 1    )]  # noqa: E741

       for i in range(1					,	m + 1    ):
              for j in range(1					,	n + 1    ):
                     A__		   =		1 if x[i - 1] == y[j - 1] else 0

                     A__		   =		max(l[i - 1][j]					,	l[i][j - 1]					,	l[i - 1][j - 1] + match    )

       A__		   =		''''''
       A__   ,      A__		   =		m, n
       while i > 0 and j > 0:
              A__		   =		1 if x[i - 1] == y[j - 1] else 0

              if l[i][j] == l[i - 1][j - 1] + match:
                     if match == 1:
                            A__		   =		x[i - 1] + seq
                     i -= 1
                     j -= 1
              elif l[i][j] == l[i - 1][j]:
                     i -= 1
              else:
                     j -= 1

       return l[m][n], seq


if __name__ == "__main__":
       a__: Tuple							   =						'AGGTAB'
       a__: Tuple							   =						'GXTXAYB'
       a__: List[Any]							   =						4
       a__: Optional[Any]							   =						'GTAB'

       a__   ,     a__: List[str]							   =						longest_common_subsequence(a, b)
       print('len =', ln, ', sub-sequence =', subseq)
       import doctest

       doctest.testmod()





