



class  snake_case__:

					"""simple docstring"""






					def __init__(				self   :      str ,  SCREAMING_SNAKE_CASE   :      Optional[int] = "" ,  SCREAMING_SNAKE_CASE   :      Any = False	):
									# Mapping from the first character of the prefix of the node
									lowercase__	:       Dict						=	{}

									# A node will be a leaf if the tree contains its word
									lowercase__	:       List[str]						=	is_leaf

									lowercase__	:       Dict						=	prefix







					def 					snake_case	(				self   :      Optional[Any] ,  SCREAMING_SNAKE_CASE   :      Any	):
									lowercase__	:       Union[str, Any]						=	0
									for q, w in zip(self.prefix ,  SCREAMING_SNAKE_CASE__	):
													if q != w:
																	break

													x += 1

									return self.prefix[:x], self.prefix[x:], word[x:]







					def 					snake_case	(				self   :      Any ,  SCREAMING_SNAKE_CASE   :      Dict	):
									for word in words:
													self.insert(SCREAMING_SNAKE_CASE__	)







					def 					snake_case	(				self   :      Optional[Any] ,  SCREAMING_SNAKE_CASE   :      Optional[Any]	):
									# Case 1: If the word is the prefix of the node
									# Solution: We set the current node as leaf
									if self.prefix == word:
													lowercase__	:       Optional[int]						=	True

									# Case 2: The node has no edges that have a prefix to the word
									# Solution: We create an edge from the current node to a new one
									# containing the word
									elif word[0] not in self.nodes:
													lowercase__	:       int						=	RadixNode(prefix=SCREAMING_SNAKE_CASE__ ,  is_leaf=SCREAMING_SNAKE_CASE__	)

									else:
													lowercase__	:       int						=	self.nodes[word[0]]
													lowercase__				,				lowercase__				,				lowercase__	:       Dict						=	incoming_node.match(
													    SCREAMING_SNAKE_CASE__	)

													# Case 3: The node prefix is equal to the matching
													# Solution: We insert remaining word on the next node
													if remaining_prefix == "":
																	self.nodes[matching_string[0]].insert(SCREAMING_SNAKE_CASE__	)

													# Case 4: The word is greater equal to the matching
													# Solution: Create a node in between both nodes, change
													# prefixes and add the new node for the remaining word
													else:
																	lowercase__	:       Dict						=	remaining_prefix

																	lowercase__	:       List[Any]						=	self.nodes[matching_string[0]]
																	lowercase__	:       List[str]						=	RadixNode(SCREAMING_SNAKE_CASE__ ,  SCREAMING_SNAKE_CASE__	)
																	lowercase__	:       Optional[int]						=	aux_node

																	if remaining_word == "":
																					lowercase__	:       int						=	True
																	else:
																					self.nodes[matching_string[0]].insert(SCREAMING_SNAKE_CASE__	)







					def 					snake_case	(				self   :      Optional[Any] ,  SCREAMING_SNAKE_CASE   :      Dict	):
									lowercase__	:       List[Any]						=	self.nodes.get(word[0] ,  SCREAMING_SNAKE_CASE__	)
									if not incoming_node:
													return False
									else:
													lowercase__				,				lowercase__				,				lowercase__	:       List[str]						=	incoming_node.match(
													    SCREAMING_SNAKE_CASE__	)
													# If there is remaining prefix, the word can't be on the tree
													if remaining_prefix != "":
																	return False
													# This applies when the word and the prefix are equal
													elif remaining_word == "":
																	return incoming_node.is_leaf
													# We have word remaining so we check the next node
													else:
																	return incoming_node.find(SCREAMING_SNAKE_CASE__	)







					def 					snake_case	(				self   :      Optional[Any] ,  SCREAMING_SNAKE_CASE   :      Any	):
									lowercase__	:       List[Any]						=	self.nodes.get(word[0] ,  SCREAMING_SNAKE_CASE__	)
									if not incoming_node:
													return False
									else:
													lowercase__				,				lowercase__				,				lowercase__	:       Union[str, Any]						=	incoming_node.match(
													    SCREAMING_SNAKE_CASE__	)
													# If there is remaining prefix, the word can't be on the tree
													if remaining_prefix != "":
																	return False
													# We have word remaining so we check the next node
													elif remaining_word != "":
																	return incoming_node.delete(SCREAMING_SNAKE_CASE__	)
													else:
																	# If it is not a leaf, we don't have to delete
																	if not incoming_node.is_leaf:
																					return False
																	else:
																					# We delete the nodes if no edges go from it
																					if len(incoming_node.nodes	) == 0:
																									del self.nodes[word[0]]
																									# We merge the current node with its only child
																									if len(self.nodes	) == 1 and not self.is_leaf:
																													lowercase__	:       Dict						=	list(self.nodes.values()	)[0]
																													lowercase__	:       Union[str, Any]						=	merging_node.is_leaf
																													self.prefix += merging_node.prefix
																													lowercase__	:       Optional[int]						=	merging_node.nodes
                    # If there is more than 1 edge, we just mark it as non-leaf
																					elif len(incoming_node.nodes	) > 1:
																									lowercase__	:       List[Any]						=	False
																					# If there is 1 edge, we merge it with its child
																					else:
																									lowercase__	:       int						=	list(incoming_node.nodes.values()	)[0]
																									lowercase__	:       List[Any]						=	merging_node.is_leaf
																									incoming_node.prefix += merging_node.prefix
																									lowercase__	:       Optional[int]						=	merging_node.nodes

																					return True







					def 					snake_case	(				self   :      Tuple ,  SCREAMING_SNAKE_CASE   :      Dict = 0	):
									if self.prefix != "":
													print("-" * height ,  self.prefix ,  "  (leaf)" if self.is_leaf else ""	)

									for value in self.nodes.values():
													value.print_tree(height + 1	)






def    __lowerCamelCase   (  ):

				"""simple docstring"""


				lowercase__	:       Any						=	"banana bananas bandana band apple all beast".split()
				lowercase__	:       Optional[Any]						=	RadixNode()
				root.insert_many(UpperCAmelCase_		)

				assert all(root.find(UpperCAmelCase_		) for word in words		)
				assert not root.find("bandanas"		)
				assert not root.find("apps"		)
				root.delete("all"		)
				assert not root.find("all"		)
				root.delete("banana"		)
				assert not root.find("banana"		)
				assert root.find("bananas"		)

				return True


def    __lowerCamelCase   (  ):

				"""simple docstring"""


				assert test_trie()


def    __lowerCamelCase   (  ):

				"""simple docstring"""


				lowercase__	:       List[Any]						=	RadixNode()
				lowercase__	:       List[Any]						=	"banana bananas bandanas bandana band apple all beast".split()
				root.insert_many(UpperCAmelCase_		)

				print("Words:"	,					UpperCAmelCase_		)
				print("Tree:"		)
				root.print_tree()


if __name__ == "__main__":
				main()









"""simple docstring"""







import unittest

from transformers.utils.backbone_utils import (
    BackboneMixin,
    get_aligned_output_features_output_indices,
    verify_out_features_out_indices,
)






class       UpperCamelCase__			(   unittest.TestCase      ):

			"""simple docstring"""


			def   snake_case__	(      self		)      ->	Dict:
				A__											=					["a", "b", "c"]

				# Defaults to last layer if both are None
				A__							,							A__											=					get_aligned_output_features_output_indices(SCREAMING_SNAKE_CASE__						,	SCREAMING_SNAKE_CASE__						,	SCREAMING_SNAKE_CASE__		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	["c"]		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	[2]		)

				# Out indices set to match out features
				A__							,							A__											=					get_aligned_output_features_output_indices(["a", "c"]						,	SCREAMING_SNAKE_CASE__						,	SCREAMING_SNAKE_CASE__		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	["a", "c"]		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	[0, 2]		)

				# Out features set to match out indices
				A__							,							A__											=					get_aligned_output_features_output_indices(SCREAMING_SNAKE_CASE__						,	[0, 2]						,	SCREAMING_SNAKE_CASE__		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	["a", "c"]		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	[0, 2]		)

				# Out features selected from negative indices
				A__							,							A__											=					get_aligned_output_features_output_indices(SCREAMING_SNAKE_CASE__						,	[-3, -1]						,	SCREAMING_SNAKE_CASE__		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	["a", "c"]		)
				self.assertEqual(SCREAMING_SNAKE_CASE__						,	[-3, -1]		)


			def   snake_case__	(      self		)      ->	Dict:
				# Stage names must be set
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(["a", "b"]						,	(0, 1)						,	SCREAMING_SNAKE_CASE__		)

				# Out features must be a list
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(("a", "b")						,	(0, 1)						,	["a", "b"]		)

				# Out features must be a subset of stage names
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(["a", "b"]						,	(0, 1)						,	["a"]		)

				# Out indices must be a list or tuple
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(SCREAMING_SNAKE_CASE__						,	0						,	["a", "b"]		)

				# Out indices must be a subset of stage names
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(SCREAMING_SNAKE_CASE__						,	(0, 1)						,	["a"]		)

				# Out features and out indices must be the same length
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(["a", "b"]						,	(0,)						,	["a", "b", "c"]		)

				# Out features should match out indices
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(["a", "b"]						,	(0, 2)						,	["a", "b", "c"]		)

				# Out features and out indices should be in order
				with self.assertRaises(SCREAMING_SNAKE_CASE__		):
					verify_out_features_out_indices(["b", "a"]						,	(0, 1)						,	["a", "b"]		)

				# Check passes with valid inputs
				verify_out_features_out_indices(["a", "b", "d"]						,	(0, 1, -1)						,	["a", "b", "c", "d"]		)







			def   snake_case__	(      self		)      ->	List[Any]:
				A__											=					BackboneMixin()

				A__											=					["a", "b", "c"]
				A__											=					["a", "c"]
				A__											=					[0, 2]

				# Check that the output features and indices are set correctly
				self.assertEqual(backbone.out_features						,	["a", "c"]		)
				self.assertEqual(backbone.out_indices						,	[0, 2]		)

				# Check out features and indices are updated correctly
				A__											=					["a", "b"]
				self.assertEqual(backbone.out_features						,	["a", "b"]		)
				self.assertEqual(backbone.out_indices						,	[0, 1]		)

				A__											=					[-3, -1]
				self.assertEqual(backbone.out_features						,	["a", "c"]		)
				self.assertEqual(backbone.out_indices						,	[-3, -1]		)




