code: 
  def 						lowerCAmelCase_		(      _snake_case   :						int     )       ->	str:
  
  
  
  
  
  
  
  	'''simple docstring'''
  
  
  	__magic_name__	:	Dict			     =  1
  	__magic_name__	:	Tuple			     =  0
  	__magic_name__	:	List[Any]			     =  1
  	__magic_name__	:	Any			     =  1
  	__magic_name__	:	Dict			     =  3
  	__magic_name__	:	Dict			     =  3
  	__magic_name__	:	str			     =  limit
  	__magic_name__	:	str			     =  0
  
  	__magic_name__	:	Union[str, Any]			     =  ""
  	while counter != decimal + 1:
  		if 4 * q + r - t < n * t:
  			result += str(UpperCamelCase__     )
  			if counter == 0:
  				result += "."
  
  			if decimal == counter:
  				break
  
  			counter += 1
  			__magic_name__	:	Union[str, Any]			     =  10 * (r - n * t)
  			__magic_name__	:	int			     =  ((10 * (3 * q + r)) // t) - 10 * n
  			q *= 10
  			__magic_name__	:	Optional[Any]			     =  nr
  		else:
  			__magic_name__	:	Optional[int]			     =  (2 * q + r) * l
  			__magic_name__	:	int			     =  (q * (7 * k) + 2 + (r * l)) // (t * l)
  			q *= k
  			t *= l
  			l += 2
  			k += 1
  			__magic_name__	:	Tuple			     =  nn
  			__magic_name__	:	Dict			     =  nr
  	return result
  
  
  
  
  
  
  def 						lowerCAmelCase_		(      )       ->	Tuple:
  
  
  
  
  
  
  
  	'''simple docstring'''
  
  
  	print(F'''{calculate_pi(50     ) = }'''     )
  	import doctest
  
  	doctest.testmod()
  
  
  if __name__ == "__main__":
  				main()
  
style_context: 
  def 						lowerCAmelCase_		(      _snake_case   :						int     )       ->	int:
  
  
  
  
  
  
  
  	'''simple docstring'''
  
  
  	if not isinstance(_snake_case   ,     _snake_case     ) or number < 0:
  		raise ValueError("Input must be a non-negative integer"     )
  
  	__magic_name__	:	Dict			     =  number & ~(number - 1)
  	__magic_name__	:	Optional[Any]			     =  0
  	while intermediate:
  		intermediate >>= 1
  		index += 1
  	return index - 1
  
  
  if __name__ == "__main__":
  				import doctest
  
  				doctest.testmod(verbose=True)
  