'''simple docstring'''

from __future__ import annotations

from collections.abc import Iterator
from typing import Generic, TypeVar

__a:			Optional[int]	       =       TypeVar("""T""")



class       UpperCAmelCase  (						Generic[T] ):





       '''simple docstring'''



       def __init__(						self     ,       __lowerCAmelCase			)  ->  str:
        lowercase__    :   str						= data
        lowercase__    :   Union[str, Any]						= None


       def __str__(						self			)  ->  str:
        return F"""{self.data}"""



class       UpperCAmelCase  (						Generic[T] ):





       '''simple docstring'''



       def __init__(						self			)  ->  None:
        lowercase__    :   Any						= None

       def __iter__(						self			)  ->  Iterator[T]:
        lowercase__    :   Optional[int]						= self.top
        while node:
         yield node.data
         lowercase__    :   Dict						= node.next

       def __str__(						self			)  ->  str:
        return "->".join([str(__lowerCAmelCase			) for item in self]			)

       def __len__(						self			)  ->  int:
        return len(tuple(iter(self			)			)			)

       def _lowerCAmelCase(						self			)  ->  bool:
        return self.top is None

       def _lowerCAmelCase(						self     ,       __lowerCAmelCase			)  ->  None:
        lowercase__    :   List[Any]						= Node(__lowerCAmelCase			)
        if not self.is_empty():
         lowercase__    :   Dict						= self.top
        lowercase__    :   List[Any]						= node

       def _lowerCAmelCase(						self			)  ->  T:




        if self.is_empty():
         raise IndexError('''pop from empty stack'''			)
        assert isinstance(self.top     ,       __lowerCAmelCase			)
        lowercase__    :   List[str]						= self.top
        lowercase__    :   str						= self.top.next
        return pop_node.data

       def _lowerCAmelCase(						self			)  ->  T:




        if self.is_empty():
         raise IndexError('''peek from empty stack'''			)

        assert self.top is not None
        return self.top.data


       def _lowerCAmelCase(						self			)  ->  None:
        lowercase__    :   List[str]						= None


if __name__ == "__main__":
  from doctest import testmod

  testmod()


'''simple docstring'''

import pytest

import datasets.config
from datasets.utils.info_utils import is_small_dataset
@pytest.mark.parametrize('''dataset_size'''		,					[None, 400 * 2**20, 600 * 2**20]					)
@pytest.mark.parametrize('''input_in_memory_max_size'''		,					['''default''', 0, 100 * 2**20, 900 * 2**20]					)
def       __UpperCamelCase	(       UpperCAmelCase		,					UpperCAmelCase		,					UpperCAmelCase					):
 if input_in_memory_max_size != "default":
  monkeypatch.setattr(datasets.config		,					'''IN_MEMORY_MAX_SIZE'''		,					UpperCAmelCase					)
 lowercase__    :   List[Any]						= datasets.config.IN_MEMORY_MAX_SIZE
 if input_in_memory_max_size == "default":
  assert in_memory_max_size == 0
 else:
  assert in_memory_max_size == input_in_memory_max_size
 if dataset_size and in_memory_max_size:
  lowercase__    :   str						= dataset_size < in_memory_max_size
 else:
  lowercase__    :   Optional[int]						= False
 lowercase__    :   Optional[Any]						= is_small_dataset(UpperCAmelCase					)
 assert result == expected

