code: 
  
  
  
  from __future__ import annotations
  
  import sys
  
  
  
  
  def     UpperCAmelCase__ (							__snake_case							)   -> int:
    if n < 0:
      raise ValueError('''Negative arguments are not supported'''							)
    return _fib(__snake_case							)[0]
  
  
  
  
  def     UpperCAmelCase__ (							__snake_case							)   -> tuple[int, int]:
    if n == 0:  # (F(0), F(1))
      return (0, 1)
  
    # F(2n) = F(n)[2F(n+1) − F(n)]
    # F(2n+1) = F(n+1)^2+F(n)^2
    _A    ,   _A           =    _fib(n // 2							)
    _A           =    a * (b * 2 - a)
    _A           =    a * a + b * b
    return (d, c + d) if n % 2 else (c, d)
  
  
  if __name__ == "__main__":
      __lowerCamelCase  				=					int(sys.argv[1])
      print(f'''fibonacci({n}) is {fibonacci(n)}''')
style_context: 
  
  
  
  import argparse
  
  import torch
  
  from transformers import ElectraConfig, ElectraForMaskedLM, ElectraForPreTraining, load_tf_weights_in_electra
  from transformers.utils import logging
  
  
  logging.set_verbosity_info()
  
  
  
  
  def     UpperCAmelCase__ (							__snake_case						,				__snake_case						,				__snake_case						,				__snake_case							)   -> Tuple:
    # Initialise PyTorch model
    _A           =    ElectraConfig.from_json_file(__snake_case							)
    print(F'''Building PyTorch model from configuration: {config}'''							)
  
    if discriminator_or_generator == "discriminator":
      _A           =    ElectraForPreTraining(__snake_case							)
    elif discriminator_or_generator == "generator":
      _A           =    ElectraForMaskedLM(__snake_case							)
    else:
      raise ValueError('''The discriminator_or_generator argument should be either \'discriminator\' or \'generator\''''							)
  
    # Load weights from tf checkpoint
    load_tf_weights_in_electra(
        __snake_case						,				__snake_case						,				__snake_case						,				discriminator_or_generator=__snake_case							)
  
    # Save pytorch-model
    print(F'''Save PyTorch model to {pytorch_dump_path}'''							)
    torch.save(model.state_dict()						,				__snake_case							)
  
  
  if __name__ == "__main__":
      __lowerCamelCase  				=					argparse.ArgumentParser()
      # Required parameters
      parser.add_argument(
          """--tf_checkpoint_path""", default=None, type=str, required=True, help="""Path to the TensorFlow checkpoint path."""
      )
      parser.add_argument(
          """--config_file""",
          default=None,
          type=str,
          required=True,
          help="""The config json file corresponding to the pre-trained model. \nThis specifies the model architecture.""",
      )
      parser.add_argument(
          """--pytorch_dump_path""", default=None, type=str, required=True, help="""Path to the output PyTorch model."""
      )
      parser.add_argument(
          """--discriminator_or_generator""",
          default=None,
          type=str,
          required=True,
          help=(
              """Whether to export the generator or the discriminator. Should be a string, either 'discriminator' or """
              """'generator'."""
          ),
      )
      __lowerCamelCase  				=					parser.parse_args()
      convert_tf_checkpoint_to_pytorch(
          args.tf_checkpoint_path, args.config_file, args.pytorch_dump_path, args.discriminator_or_generator
      )