code: 
  from __future__ import annotations
  
  import sys
  
  
  def       a			(   a  )    ->int:
  
  
  
  
  			'''simple docstring'''
  
  
  			if n < 0:
  						raise ValueError('''Negative arguments are not supported'''  )
  			return _fib(a  )[0]
  
  
  def       a			(   a  )    ->tuple[int, int]:
  
  
  
  
  			'''simple docstring'''
  
  
  			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
  			SCREAMING_SNAKE_CASE	,       SCREAMING_SNAKE_CASE    	=   _fib(n // 2  )
  			SCREAMING_SNAKE_CASE    	=   a * (b * 2 - a)
  			SCREAMING_SNAKE_CASE    	=   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 json
  
  import requests
  
  from .fetch_github_info import AUTHENTICATED_USER_ENDPOINT, fetch_github_info
  
  
  def       a			(   a  )    ->Tuple:
  
  
  
  
  			'''simple docstring'''
  
  
  			class 						lowerCamelCase			:
  
  
  
  
  
  
  
  				def __init__(    self			:int      ,    lowercase			:List[str] )		->			None:
  
  
  
  
  
  
  
  							"""simple docstring"""
  
  
  
  
  
  
  							assert isinstance(lowercase      ,    (bytes, str) )
  							SCREAMING_SNAKE_CASE    	=   content
  
  
  
  
  
  
  
  				def    snake_case__    (    self			:Optional[Any] )		->			Optional[int]:
  
  
  
  
  
  
  
  							"""simple docstring"""
  
  
  
  
  
  
  							return json.loads(self.content )
  
  			def mock_response(*a		,	**a  ):
  						assert args[0] == AUTHENTICATED_USER_ENDPOINT
  						assert "Authorization" in kwargs["headers"]
  						assert kwargs["headers"]["Authorization"].startswith('''token '''  )
  						assert "Accept" in kwargs["headers"]
  						return FakeResponse(B'''{"login":"test","id":1}'''  )
  
  			monkeypatch.setattr(a		,	'''get'''		,	a  )
  			SCREAMING_SNAKE_CASE    	=   fetch_github_info('''token'''  )
  			assert result["login"] == "test"
  			assert result["id"] == 1