






from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_sentencepiece_available, is_torch_available


lowerCamelCase										=  {'''configuration_bert_generation''': ['''BertGenerationConfig''']}

try:
   if not is_sentencepiece_available():
      raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
   pass
else:
   lowerCamelCase										=  ['''BertGenerationTokenizer''']

try:
   if not is_torch_available():
      raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
   pass
else:
   lowerCamelCase										=  [
       '''BertGenerationDecoder''',
       '''BertGenerationEncoder''',
       '''BertGenerationPreTrainedModel''',
       '''load_tf_weights_in_bert_generation''',
   ]


if TYPE_CHECKING:
   from .configuration_bert_generation import BertGenerationConfig

   try:
      if not is_sentencepiece_available():
         raise OptionalDependencyNotAvailable()
   except OptionalDependencyNotAvailable:
      pass
   else:
      from .tokenization_bert_generation import BertGenerationTokenizer

   try:
      if not is_torch_available():
         raise OptionalDependencyNotAvailable()
   except OptionalDependencyNotAvailable:
      pass
   else:
      from .modeling_bert_generation import (
          BertGenerationDecoder,
          BertGenerationEncoder,
          BertGenerationPreTrainedModel,
          load_tf_weights_in_bert_generation,
      )

else:
   import sys

   lowerCamelCase										=  _LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)








from __future__ import annotations
def        UpperCAmelCase      (   _lowercase,      _lowercase      ):


    '''simple docstring'''



    _lowercase     =	[None] * (len(_lowercase      ) + len(_lowercase      ))

    _lowercase     =	0  # pointer to current index for left Half
    _lowercase     =	0  # pointer to current index for the right Half
    _lowercase     =	0  # pointer to current index for the sorted array Half

    while pointera < len(_lowercase      ) and pointera < len(_lowercase      ):
        if left_half[pointera] < right_half[pointera]:
            _lowercase     =	left_half[pointera]
            pointera += 1
            index += 1
        else:
            _lowercase     =	right_half[pointera]
            pointera += 1
            index += 1
    while pointera < len(_lowercase      ):
        _lowercase     =	left_half[pointera]
        pointera += 1
        index += 1

    while pointera < len(_lowercase      ):
        _lowercase     =	right_half[pointera]
        pointera += 1
        index += 1

    return sorted_array
def        UpperCAmelCase      (   _lowercase      ):


    '''simple docstring'''



    if len(_lowercase      ) <= 1:
        return array
    # the actual formula to calculate the middle element = left + (right - left) // 2
    # this avoids integer overflow in case of large N
    _lowercase     =	0 + (len(_lowercase      ) - 0) // 2

    # Split the array into halves till the array length becomes equal to One
    # merge the arrays of single length returned by mergeSort function and
    # pass them into the merge arrays function which merges the array
    _lowercase     =	array[:middle]
    _lowercase     =	array[middle:]

    return merge(merge_sort(_lowercase      ),      merge_sort(_lowercase      )      )


if __name__ == "__main__":
   import doctest

   doctest.testmod()
