code: 
  
  
  
  
  
  
  import math
  from decimal import Decimal, getcontext
  
  def 			snake_case__    (					SCREAMING_SNAKE_CASE_	:					int = 4_000_000    ):
  
  
  
       '''simple docstring'''
  
  
  
  
  
       try:
            lowercase__					:     int   = int(SCREAMING_SNAKE_CASE_    )
       except (TypeError, ValueError):
            raise TypeError('Parameter n must be int or castable to int.'    )
       if n <= 0:
            raise ValueError('Parameter n must be greater than or equal to one.'    )
       lowercase__					:     Any   = 100
       lowercase__					:     List[str]   = (Decimal(5    ) ** Decimal(0.5    ) + 1) / Decimal(2    )
  
       lowercase__					:     Dict   = (math.floor(math.log(n * (phi + 2)			,  SCREAMING_SNAKE_CASE_    ) - 1    ) // 3) * 3 + 2
       lowercase__					:     Tuple   = Decimal(round(phi ** Decimal(index + 1    )    )    ) / (phi + 2)
       lowercase__					:     Optional[Any]   = num // 2
       return int(SCREAMING_SNAKE_CASE_    )
  
  
  if __name__ == "__main__":
         print(F'''{solution() = }''')
  
  
style_context: 
  
  from transformers.models.cpm.tokenization_cpm import CpmTokenizer
  from transformers.testing_utils import custom_tokenizers
  
  from ..xlnet.test_modeling_xlnet import XLNetModelTest
  
  
  @custom_tokenizers
  class    SCREAMING_SNAKE_CASE__      (__snake_case  ):
  
  
  
  
  
      def    snake_case_       (   self		,     a		,     a		,     a		,     a		,     a):
           return True
  
  
  
  
  
      def    snake_case_       (   self):
           lowercase__					:     Tuple   = CpmTokenizer.from_pretrained('TsinghuaAI/CPM-Generate')
           lowercase__					:     str   = 'Hugging Face大法好，谁用谁知道。'
           lowercase__					:     Optional[int]   = 'Hugging Face大法好,谁用谁知道。<unk>'
           lowercase__					:     Any   = '▁Hu gg ing ▁ ▂ ▁F ace ▁大法 ▁好 ▁ , ▁谁 ▁用 ▁谁 ▁知 道 ▁ 。'.split()
  
           lowercase__					:     Any   = tokenizer.tokenize(a)
           self.assertListEqual(a		,     a)
  
           lowercase__					:     List[Any]   = tokens + [tokenizer.unk_token]
  
           lowercase__					:     Any   = [1_3789, 1_3283, 1421, 8, 10, 1164, 1_3608, 1_6528, 63, 8, 9, 440, 108, 440, 121, 90, 8, 12, 0]
           self.assertListEqual(tokenizer.convert_tokens_to_ids(a)		,     a)
  
           lowercase__					:     Optional[Any]   = tokenizer.decode(a)
           self.assertEqual(a		,     a)
  
  