

"""simple docstring"""




class 					__magic_name__							:






				'''simple docstring'''





				def __init__( self	,				_a	,				_a=None	,				_a=None				):





							"""simple docstring"""
							lowerCamelCase       =      data
							lowerCamelCase       =      previous
							lowerCamelCase       =      next_node





				def __str__( self				):





							"""simple docstring"""
							return f'{self.data}'





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							return self.data





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							return self.next





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							return self.previous






class 					__magic_name__							:






				'''simple docstring'''





				def __init__( self	,				_a				):





							"""simple docstring"""
							lowerCamelCase       =      head





				def __iter__( self				):





							"""simple docstring"""
							return self





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							if not self.current:
										raise StopIteration
							else:
										lowerCamelCase       =      self.current.get_data()
										lowerCamelCase       =      self.current.get_next()
										return value






class 					__magic_name__							:






				'''simple docstring'''





				def __init__( self				):





							"""simple docstring"""
							lowerCamelCase       =      None  # First node in list
							lowerCamelCase       =      None  # Last node in list





				def __str__( self				):





							"""simple docstring"""
							lowerCamelCase       =      self.head
							lowerCamelCase       =      []
							while current is not None:
										nodes.append(current.get_data()				)
										lowerCamelCase       =      current.get_next()
							return " ".join(str(_a				) for node in nodes				)





				def __contains__( self	,				_a				):





							"""simple docstring"""
							lowerCamelCase       =      self.head
							while current:
										if current.get_data() == value:
													return True
										lowerCamelCase       =      current.get_next()
							return False





				def __iter__( self				):





							"""simple docstring"""
							return LinkedListIterator(self.head				)





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							if self.head:
										return self.head.get_data()
							return None





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							if self.tail:
										return self.tail.get_data()
							return None





				def      _lowerCAmelCase       ( self	,				_a				):





							"""simple docstring"""
							if self.head is None:
										lowerCamelCase       =      node
										lowerCamelCase       =      node
							else:
										self.insert_before_node(self.head	,				_a				)





				def      _lowerCAmelCase       ( self	,				_a				):





							"""simple docstring"""
							if self.head is None:
										self.set_head(_a				)
							else:
										self.insert_after_node(self.tail	,				_a				)





				def      _lowerCAmelCase       ( self	,				_a				):





							"""simple docstring"""
							lowerCamelCase       =      Node(_a				)
							if self.head is None:
										self.set_head(_a				)
							else:
										self.set_tail(_a				)





				def      _lowerCAmelCase       ( self	,				_a	,				_a				):





							"""simple docstring"""
							lowerCamelCase       =      node
							lowerCamelCase       =      node.previous

							if node.get_previous() is None:
										lowerCamelCase       =      node_to_insert
							else:
										lowerCamelCase       =      node_to_insert

							lowerCamelCase       =      node_to_insert





				def      _lowerCAmelCase       ( self	,				_a	,				_a				):





							"""simple docstring"""
							lowerCamelCase       =      node
							lowerCamelCase       =      node.next

							if node.get_next() is None:
										lowerCamelCase       =      node_to_insert
							else:
										lowerCamelCase       =      node_to_insert

							lowerCamelCase       =      node_to_insert





				def      _lowerCAmelCase       ( self	,				_a	,				_a				):





							"""simple docstring"""
							lowerCamelCase       =      1
							lowerCamelCase       =      Node(_a				)
							lowerCamelCase       =      self.head
							while node:
										if current_position == position:
													self.insert_before_node(_a	,				_a				)
													return
										current_position += 1
										lowerCamelCase       =      node.next
							self.insert_after_node(self.tail	,				_a				)





				def      _lowerCAmelCase       ( self	,				_a				):





							"""simple docstring"""
							lowerCamelCase       =      self.head
							while node:
										if node.get_data() == item:
													return node
										lowerCamelCase       =      node.get_next()
							raise Exception("""Node not found"""				)





				def      _lowerCAmelCase       ( self	,				_a				):





							"""simple docstring"""
							if (node := self.get_node(_a				)) is not None:
										if node == self.head:
													lowerCamelCase       =      self.head.get_next()

										if node == self.tail:
													lowerCamelCase       =      self.tail.get_previous()

										self.remove_node_pointers(_a				)





				@staticmethod
				def      _lowerCAmelCase       ( _a				):





							"""simple docstring"""
							if node.get_next():
										lowerCamelCase       =      node.previous

							if node.get_previous():
										lowerCamelCase       =      node.next

							lowerCamelCase       =      None
							lowerCamelCase       =      None





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							return self.head is None




def 					a__				(       )		->      None:
			pass


if __name__ == "__main__":
					import doctest

					doctest.testmod()









"""simple docstring"""




import tempfile
import unittest

from make_student import create_student_by_copying_alternating_layers

from transformers import AutoConfig
from transformers.file_utils import cached_property
from transformers.testing_utils import require_torch


lowerCAmelCase							:    Optional[Any]  							=							"""sshleifer/bart-tiny-random"""
lowerCAmelCase							:    List[Any]  							=							"""patrickvonplaten/t5-tiny-random"""






@require_torch
class 					__magic_name__							( unittest.TestCase       ):






				'''simple docstring'''





				@cached_property
				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							return AutoConfig.from_pretrained(_a				)





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							lowerCamelCase   ,     *lowerCamelCase       =      create_student_by_copying_alternating_layers(_a	,				tempfile.mkdtemp()	,				e=1	,				d=1				)
							self.assertEqual(student.config.num_hidden_layers	,				1				)





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							lowerCamelCase   ,     *lowerCamelCase       =      create_student_by_copying_alternating_layers(_a	,				tempfile.mkdtemp()	,				e=1	,				d=_a				)





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							lowerCamelCase   ,     *lowerCamelCase       =      create_student_by_copying_alternating_layers(_a	,				tempfile.mkdtemp()	,				e=1	,				d=_a				)
							self.assertEqual(student.config.encoder_layers	,				1				)
							self.assertEqual(student.config.decoder_layers	,				self.teacher_config.encoder_layers				)





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							lowerCamelCase   ,     *lowerCamelCase       =      create_student_by_copying_alternating_layers(_a	,				tempfile.mkdtemp()	,				e=1	,				d=1				)
							self.assertEqual(student.config.encoder_layers	,				1				)
							self.assertEqual(student.config.decoder_layers	,				1				)





				def      _lowerCAmelCase       ( self				):





							"""simple docstring"""
							with self.assertRaises(_a				):
										create_student_by_copying_alternating_layers(_a	,				tempfile.mkdtemp()	,				e=_a	,				d=_a				)



