code: 
  """simple docstring"""
  import math as m
  
  
  
  
  def     __lowerCamelCase  (		UpperCamelCase__				,     UpperCamelCase__				,     UpperCamelCase__=0.001      ):
  
  
  	"""simple docstring"""
  
  
  
  
  
  
  	return (f(a + h      ) - f(a - h      )) / (2 * h)
  
  
  
  
  def     __lowerCamelCase  (		UpperCamelCase__				,     UpperCamelCase__=0				,     UpperCamelCase__=100				,     UpperCamelCase__=0.0001				,     UpperCamelCase__=1E-6				,     UpperCamelCase__=False      ):
  
  
  	"""simple docstring"""
  
  
  
  
  
  
  	_UpperCAmelCase =						xa  # set the initial guess
  	_UpperCAmelCase =						[a]
  	_UpperCAmelCase =						abs(f(UpperCamelCase__      )      )
  	_UpperCAmelCase =						lambda UpperCamelCase__      : calc_derivative(UpperCamelCase__				,     UpperCamelCase__				,     h=UpperCamelCase__      )  # noqa: E731  Derivative of f(x)
  	for _ in range(UpperCamelCase__      ):
  		if fa(UpperCamelCase__      ) == 0:
  			raise ValueError("No converging solution found"      )
  		_UpperCAmelCase =						a - f(UpperCamelCase__      ) / fa(UpperCamelCase__      )  # Calculate the next estimate
  		if logsteps:
  			steps.append(UpperCamelCase__      )
  		if error < maxerror:
  			break
  	else:
  		raise ValueError("Iteration limit reached, no converging solution found"      )
  	if logsteps:
  		# If logstep is true, then log intermediate steps
  		return a, error, steps
  	return a, error
  
  
  if __name__ == "__main__":
  			from matplotlib import pyplot as plt
  
  			__magic_name__		       =				lambda x: m.tanh(x) ** 2 - m.exp(3 * x)  # noqa: E731
  			__magic_name__       ,  __magic_name__       ,  __magic_name__		       =				newton_raphson(
  			    f, xa=10, maxiter=10_00, step=1E-6, logsteps=True
  			)
  			plt.plot([abs(f(x)) for x in steps])
  			plt.xlabel('''step''')
  			plt.ylabel('''error''')
  			plt.show()
  			print(f'''solution = {{{solution:f}}}, error = {{{error:f}}}''')
  
  
  
  
  
style_context: 
  """simple docstring"""
  from typing import TYPE_CHECKING
  
  from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_sentencepiece_available, is_tokenizers_available
  
  
  __magic_name__		       =				{}
  
  try:
  			if not is_sentencepiece_available():
  						raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
  			pass
  else:
  			__magic_name__		       =				['''CpmTokenizer''']
  
  try:
  			if not is_tokenizers_available():
  						raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
  			pass
  else:
  			__magic_name__		       =				['''CpmTokenizerFast''']
  
  
  if TYPE_CHECKING:
  			try:
  						if not is_sentencepiece_available():
  									raise OptionalDependencyNotAvailable()
  			except OptionalDependencyNotAvailable:
  						pass
  			else:
  						from .tokenization_cpm import CpmTokenizer
  
  			try:
  						if not is_tokenizers_available():
  									raise OptionalDependencyNotAvailable()
  			except OptionalDependencyNotAvailable:
  						pass
  			else:
  						from .tokenization_cpm_fast import CpmTokenizerFast
  
  else:
  			import sys
  
  			__magic_name__		       =				_LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)
  
  
  
  
  