



"""simple docstring"""





from __future__ import annotations

from dataclasses import dataclass



@dataclass
class  _lowerCAmelCase     :





		"""simple docstring"""






		_lowerCamelCase      	=							42
		_lowerCamelCase      	=							None
		_lowerCamelCase      	=							None




def 						__lowerCAmelCase    (		__UpperCamelCase   :      TreeNode | None     ):


						'''simple docstring'''






						def is_valid_tree(__UpperCamelCase   :      TreeNode | None     ) -> bool:
												if node is None:
																		return True

												if not isinstance(__UpperCamelCase       ,			__UpperCamelCase     ):
																		return False

												try:
																		float(node.data     )
												except (TypeError, ValueError):
																		return False

												return is_valid_tree(node.left     ) and is_valid_tree(node.right     )

						if not is_valid_tree(__UpperCamelCase     ):
												raise ValueError(
												    """Each node should be type of TreeNode and data should be float."""     )

						def is_binary_search_tree_recursive_check(
						    __UpperCamelCase   :      TreeNode | None       ,			__UpperCamelCase   :      float       ,			__UpperCamelCase   :      float     ) -> bool:

												if node is None:
																		return True

												return (
												    left_bound < node.data < right_bound
												    and is_binary_search_tree_recursive_check(node.left       ,			__UpperCamelCase       ,			node.data     )
												    and is_binary_search_tree_recursive_check(
												        node.right       ,			node.data       ,			__UpperCamelCase     )
												)

						return is_binary_search_tree_recursive_check(__UpperCamelCase       ,			-float("""inf"""     )       ,			float("""inf"""     )     )


if __name__ == "__main__":
					import doctest

					doctest.testmod()





'''simple docstring'''
import baseaa




def 	_A  (       A							)  ->				bytes:
	return baseaa.aaaencode(string.encode("utf-8"							)							)




def 	_A  (       A							)  ->				str:
	return baseaa.aaadecode(A							).decode("utf-8"							)


if __name__ == "__main__":
					import doctest

					doctest.testmod()


