

'''simple docstring'''

from __future__ import annotations

from collections import Counter
from random import random







class   UpperCamelCase__    :


		"""simple docstring"""

		def __init__( self			):


							'''simple docstring'''

							UpperCAmelCase		:							Optional[Any]   					=   {}







		def       A_       ( self    ,			snake_case			):


							'''simple docstring'''

							UpperCAmelCase		:							Union[str, Any]   					=   {}







		def       A_       ( self    ,			snake_case    ,			snake_case    ,			snake_case			):


							'''simple docstring'''

							if nodea not in self.connections:
												self.add_node(lowerCAmelCase__			)
							if nodea not in self.connections:
												self.add_node(lowerCAmelCase__			)
							UpperCAmelCase		:							List[Any]   					=   probability







		def       A_       ( self			):


							'''simple docstring'''

							return list(self.connections			)







		def       A_       ( self    ,			snake_case			):


							'''simple docstring'''

							UpperCAmelCase		:							Dict   					=   0
							UpperCAmelCase		:							Tuple   					=   random()

							for dest in self.connections[node]:
												current_probability += self.connections[node][dest]
												if current_probability > random_value:
																	return dest
							return ""





def       lowercase					(     __magic_name__ ,    __magic_name__ ,    __magic_name__							):



					'''simple docstring'''







					UpperCAmelCase		:							List[Any]   					=   MarkovChainGraphUndirectedUnweighted()

					for nodea, nodea, probability in transitions:
										graph.add_transition_probability(_UpperCAmelCase ,    _UpperCAmelCase ,    _UpperCAmelCase							)

					UpperCAmelCase		:							Tuple   					=   Counter(graph.get_nodes()							)
					UpperCAmelCase		:							Optional[Any]   					=   start

					for _ in range(_UpperCAmelCase							):
										UpperCAmelCase		:							int   					=   graph.transition(_UpperCAmelCase							)
										visited[node] += 1

					return visited


if __name__ == "__main__":
				import doctest

				doctest.testmod()



def 			A_      (    _UpperCAmelCase				,	_UpperCAmelCase = False    ):

						if not isinstance(_UpperCAmelCase				,	_UpperCAmelCase    ):
												SCREAMING_SNAKE_CASE_: str  		=       f"Expected string as input, found {type(_UpperCAmelCase    )}"
												raise ValueError(_UpperCAmelCase    )
						if not isinstance(_UpperCAmelCase				,	_UpperCAmelCase    ):
												SCREAMING_SNAKE_CASE_: Optional[Any]  		=       f"Expected boolean as use_pascal parameter, found {type(_UpperCAmelCase    )}"
												raise ValueError(_UpperCAmelCase    )

						SCREAMING_SNAKE_CASE_: Tuple  		=       input_str.split("_"    )

						SCREAMING_SNAKE_CASE_: str  		=       0 if use_pascal else 1

						SCREAMING_SNAKE_CASE_: int  		=       words[start_index:]

						SCREAMING_SNAKE_CASE_: List[str]  		=       [word[0].upper() + word[1:] for word in words_to_capitalize]

						SCREAMING_SNAKE_CASE_: List[Any]  		=       "" if use_pascal else words[0]

						return "".join([initial_word, *capitalized_words]    )


if __name__ == "__main__":
						from doctest import testmod

						testmod()






