






# this script builds a small sample spm file tests/fixtures/test_sentencepiece_no_bos.model, with features needed by pegasus

# 1. pip install sentencepiece
#
# 2. wget https://raw.githubusercontent.com/google/sentencepiece/master/data/botchan.txt

# 3. build
import sentencepiece as spm

# pegasus:
# 1. no bos
# 2. eos_id is 1
# 3. unk_id is 2
# build a sample spm file accordingly
spm.SentencePieceTrainer.train(
    "--input=botchan.txt --model_prefix=test_sentencepiece_no_bos --bos_id=-1 --unk_id=2  --eos_id=1  --vocab_size=1000"
)

# 4. now update the fixture
# mv test_sentencepiece_no_bos.model ../../tests/fixtures/








from functools import lru_cache

@lru_cache
def     a__  (	UpperCAmelCase							:    int    )						->		int:
  if not isinstance(UpperCAmelCase       ,				UpperCAmelCase    ):
    raise TypeError('''k must be an integer.'''    )
  if k < 0:
    raise ValueError('''k integer must be greater or equal to zero.'''    )
  if k == 0:
    return 0
  elif k == 1:
    return 1
  else:
    return fibonacci(k - 1    ) + fibonacci(k - 2    )

def     a__  (	UpperCAmelCase							:    list       ,				UpperCAmelCase							:    int    )						->		int:
  UpperCAmelCase :							List[str]								=				len(UpperCAmelCase    )
  # Find m such that F_m >= n where F_i is the i_th fibonacci number.
  UpperCAmelCase :							Any								=				0
  while True:
    if fibonacci(UpperCAmelCase    ) >= len_list:
      UpperCAmelCase :							Optional[Any]								=				i
      break
    i += 1
  UpperCAmelCase :							List[Any]								=				0
  while fibb_k > 0:
    UpperCAmelCase :							List[str]								=				min(
        offset + fibonacci(fibb_k - 1    )       ,				len_list - 1    )  # Prevent out of range
    UpperCAmelCase :							Optional[Any]								=				arr[index_k]
    if item_k_1 == val:
      return index_k
    elif val < item_k_1:
      fibb_k -= 1
    elif val > item_k_1:
      offset += fibonacci(fibb_k - 1    )
      fibb_k -= 2
  else:
    return -1


if __name__ == "__main__":
     import doctest

     doctest.testmod()





