"""simple docstring"""






from __future__ import annotations

from random import random
from typing import Generic, TypeVar

__lowerCAmelCase    :       str					     =TypeVar("""KT""")
__lowerCAmelCase    :       Union[str, Any]					     =TypeVar("""VT""")





class  _A						(       Generic[KT, VT]	):

      def __init__(						self		,       __lowerCAmelCase = "root"		,       __lowerCAmelCase = None						):







            """simple docstring"""



            lowercase														=	key
            lowercase														=	value
            lowercase														=	[]

      def __repr__(						self						):







            """simple docstring"""



            return f'Node({self.key}: {self.value})'







      @property
      def 				A__       (						self						):







            """simple docstring"""



            return len(self.forward						)






class  _A						(       Generic[KT, VT]	):

      def __init__(						self		,       __lowerCAmelCase = 0.5		,       __lowerCAmelCase = 16						):







            """simple docstring"""



            lowercase														=	Node[KT, VT]()
            lowercase														=	0
            lowercase														=	p
            lowercase														=	max_level

      def __str__(						self						):







            """simple docstring"""



            lowercase														=	list(self						)

            if len(__lowerCAmelCase						) == 0:
                  return f'SkipList(level={self.level})'

            lowercase														=	max((len(str(__lowerCAmelCase						)						) for item in items)		,       default=4						)
            lowercase														=	max(__lowerCAmelCase		,       4						) + 4

            lowercase														=	self.head
            lowercase														=	[]

            lowercase														=	node.forward.copy()
            lines.append(f'[{node.key}]'.ljust(__lowerCAmelCase		,       """-"""						) + """* """ * len(__lowerCAmelCase						)						)
            lines.append(""" """ * label_size + """| """ * len(__lowerCAmelCase						)						)

            while len(node.forward						) != 0:
                  lowercase														=	node.forward[0]

                  lines.append(
                      f'[{node.key}]'.ljust(__lowerCAmelCase		,       """-"""						)
                      + """ """.join(str(n.key						) if n.key == node.key else """|""" for n in forwards						)						)
                  lines.append(""" """ * label_size + """| """ * len(__lowerCAmelCase						)						)
                  lowercase														=	node.forward

            lines.append("""None""".ljust(__lowerCAmelCase						) + """* """ * len(__lowerCAmelCase						)						)
            return f'SkipList(level={self.level})\n' + "\n".join(__lowerCAmelCase						)

      def __iter__(						self						):







            """simple docstring"""



            lowercase														=	self.head

            while len(node.forward						) != 0:
                  yield node.forward[0].key
                  lowercase														=	node.forward[0]

      def 				A__       (						self						):







            """simple docstring"""



            lowercase														=	1
            while random() < self.p and level < self.max_level:
                  level += 1

            return level

      def 				A__       (						self		,       __lowerCAmelCase						):







            """simple docstring"""



            lowercase														=	[]

            lowercase														=	self.head

            for i in reversed(range(self.level						)						):
                  # i < node.level - When node level is lesser than `i` decrement `i`.
                  # node.forward[i].key < key - Jumping to node with key value higher
                  #                             or equal to searched key would result
                  #                             in skipping searched key.
                  while i < node.level and node.forward[i].key < key:
                        lowercase														=	node.forward[i]
                  # Each leftmost node (relative to searched node) will potentially have to
                  # be updated.
                  update_vector.append(__lowerCAmelCase						)

            update_vector.reverse()  # Note that we were inserting values in reverse order.

            # len(node.forward) != 0 - If current node doesn't contain any further
            #                          references then searched key is not present.
            # node.forward[0].key == key - Next node key should be equal to search key
            #                              if key is present.
            if len(node.forward						) != 0 and node.forward[0].key == key:
                  return node.forward[0], update_vector
            else:
                  return None, update_vector

      def 				A__       (						self		,       __lowerCAmelCase						):







            """simple docstring"""



            lowercase							,							lowercase														=	self._locate_node(__lowerCAmelCase						)

            if node is not None:
                  for i, update_node in enumerate(__lowerCAmelCase						):
                        # Remove or replace all references to removed node.
                        if update_node.level > i and update_node.forward[i].key == key:
                              if node.level > i:
                                    lowercase														=	node.forward[i]
                              else:
                                    lowercase														=	update_node.forward[:i]

      def 				A__       (						self		,       __lowerCAmelCase		,       __lowerCAmelCase						):







            """simple docstring"""



            lowercase							,							lowercase														=	self._locate_node(__lowerCAmelCase						)
            if node is not None:
                  lowercase														=	value
            else:
                  lowercase														=	self.random_level()

                  if level > self.level:
                        # After level increase we have to add additional nodes to head.
                        for _ in range(self.level - 1		,       __lowerCAmelCase						):
                              update_vector.append(self.head						)
                        lowercase														=	level

                  lowercase														=	Node(__lowerCAmelCase		,       __lowerCAmelCase						)

                  for i, update_node in enumerate(update_vector[:level]						):
                        # Change references to pass through new node.
                        if update_node.level > i:
                              new_node.forward.append(update_node.forward[i]						)

                        if update_node.level < i + 1:
                              update_node.forward.append(__lowerCAmelCase						)
                        else:
                              lowercase														=	new_node







      def 				A__       (						self		,       __lowerCAmelCase						):







            """simple docstring"""



            lowercase							,							lowercase														=	self._locate_node(__lowerCAmelCase						)

            if node is not None:
                  return node.value

            return None






def 			UpperCAmelCase__       (				) ->    Optional[int]:
      '''simple docstring'''


      lowercase														=	SkipList()
      skip_list.insert("""Key1"""					,		3		)
      skip_list.insert("""Key2"""					,		1_2		)
      skip_list.insert("""Key3"""					,		4_1		)
      skip_list.insert("""Key4"""					,		-1_9		)

      lowercase														=	skip_list.head
      lowercase														=	{}
      while node.level != 0:
            lowercase														=	node.forward[0]
            lowercase														=	node.value

      assert len(lowerCAmelCase__		) == 4
      assert all_values["Key1"] == 3
      assert all_values["Key2"] == 1_2
      assert all_values["Key3"] == 4_1
      assert all_values["Key4"] == -1_9


def 			UpperCAmelCase__       (				) ->    int:
      '''simple docstring'''


      lowercase														=	SkipList()
      skip_list.insert("""Key1"""					,		1_0		)
      skip_list.insert("""Key1"""					,		1_2		)

      skip_list.insert("""Key5"""					,		7		)
      skip_list.insert("""Key7"""					,		1_0		)
      skip_list.insert("""Key10"""					,		5		)

      skip_list.insert("""Key7"""					,		7		)
      skip_list.insert("""Key5"""					,		5		)
      skip_list.insert("""Key10"""					,		1_0		)

      lowercase														=	skip_list.head
      lowercase														=	{}
      while node.level != 0:
            lowercase														=	node.forward[0]
            lowercase														=	node.value

      if len(lowerCAmelCase__		) != 4:
            print()
      assert len(lowerCAmelCase__		) == 4
      assert all_values["Key1"] == 1_2
      assert all_values["Key7"] == 7
      assert all_values["Key5"] == 5
      assert all_values["Key10"] == 1_0


def 			UpperCAmelCase__       (				) ->    Dict:
      '''simple docstring'''


      lowercase														=	SkipList()
      assert skip_list.find("""Some key"""		) is None


def 			UpperCAmelCase__       (				) ->    Any:
      '''simple docstring'''


      lowercase														=	SkipList()

      skip_list.insert("""Key2"""					,		2_0		)
      assert skip_list.find("""Key2"""		) == 2_0

      skip_list.insert("""Some Key"""					,		1_0		)
      skip_list.insert("""Key2"""					,		8		)
      skip_list.insert("""V"""					,		1_3		)

      assert skip_list.find("""Y"""		) is None
      assert skip_list.find("""Key2"""		) == 8
      assert skip_list.find("""Some Key"""		) == 1_0
      assert skip_list.find("""V"""		) == 1_3


def 			UpperCAmelCase__       (				) ->    int:
      '''simple docstring'''


      lowercase														=	SkipList()
      skip_list.delete("""Some key"""		)

      assert len(skip_list.head.forward		) == 0


def 			UpperCAmelCase__       (				) ->    Any:
      '''simple docstring'''


      lowercase														=	SkipList()

      skip_list.insert("""Key1"""					,		1_2		)
      skip_list.insert("""V"""					,		1_3		)
      skip_list.insert("""X"""					,		1_4		)
      skip_list.insert("""Key2"""					,		1_5		)

      skip_list.delete("""V"""		)
      skip_list.delete("""Key2"""		)

      assert skip_list.find("""V"""		) is None
      assert skip_list.find("""Key2"""		) is None


def 			UpperCAmelCase__       (				) ->    Union[str, Any]:
      '''simple docstring'''


      lowercase														=	SkipList()

      skip_list.insert("""Key1"""					,		1_2		)
      skip_list.insert("""V"""					,		1_3		)
      skip_list.insert("""X"""					,		1_4		)
      skip_list.insert("""Key2"""					,		1_5		)

      skip_list.delete("""V"""		)
      assert skip_list.find("""V"""		) is None
      assert skip_list.find("""X"""		) == 1_4
      assert skip_list.find("""Key1"""		) == 1_2
      assert skip_list.find("""Key2"""		) == 1_5

      skip_list.delete("""X"""		)
      assert skip_list.find("""V"""		) is None
      assert skip_list.find("""X"""		) is None
      assert skip_list.find("""Key1"""		) == 1_2
      assert skip_list.find("""Key2"""		) == 1_5

      skip_list.delete("""Key1"""		)
      assert skip_list.find("""V"""		) is None
      assert skip_list.find("""X"""		) is None
      assert skip_list.find("""Key1"""		) is None
      assert skip_list.find("""Key2"""		) == 1_5

      skip_list.delete("""Key2"""		)
      assert skip_list.find("""V"""		) is None
      assert skip_list.find("""X"""		) is None
      assert skip_list.find("""Key1"""		) is None
      assert skip_list.find("""Key2"""		) is None


def 			UpperCAmelCase__       (				) ->    List[str]:
      '''simple docstring'''


      lowercase														=	SkipList()

      skip_list.insert("""Key1"""					,		1_2		)
      skip_list.insert("""V"""					,		1_3		)
      skip_list.insert("""X"""					,		1_4_2		)
      skip_list.insert("""Key2"""					,		1_5		)

      skip_list.delete("""X"""		)

      def traverse_keys(lowerCAmelCase__     :int		):
            yield node.key
            for forward_node in node.forward:
                  yield from traverse_keys(lowerCAmelCase__		)

      assert len(set(traverse_keys(skip_list.head		)		)		) == 4


def 			UpperCAmelCase__       (				) ->    Optional[int]:
      '''simple docstring'''


      def is_sorted(lowerCAmelCase__     :int		):
            return all(next_item >= item for item, next_item in zip(lowerCAmelCase__					,		lst[1:]		)		)

      lowercase														=	SkipList()
      for i in range(1_0		):
            skip_list.insert(lowerCAmelCase__					,		lowerCAmelCase__		)
      assert is_sorted(list(lowerCAmelCase__		)		)
      skip_list.delete(5		)
      skip_list.delete(8		)
      skip_list.delete(2		)
      assert is_sorted(list(lowerCAmelCase__		)		)
      skip_list.insert(-1_2					,		-1_2		)
      skip_list.insert(7_7					,		7_7		)
      assert is_sorted(list(lowerCAmelCase__		)		)


def 			UpperCAmelCase__       (				) ->    Optional[Any]:
      '''simple docstring'''


      for _ in range(1_0_0		):
            # Repeat test 100 times due to the probabilistic nature of skip list
            # random values == random bugs
            test_insert()
            test_insert_overrides_existing_value()

            test_searching_empty_list_returns_none()
            test_search()

            test_deleting_item_from_empty_list_do_nothing()
            test_deleted_items_are_not_founded_by_find_method()
            test_delete_removes_only_given_key()
            test_delete_doesnt_leave_dead_nodes()

            test_iter_always_yields_sorted_values()


def 			UpperCAmelCase__       (				) ->    List[str]:
      '''simple docstring'''


      lowercase														=	SkipList()
      skip_list.insert(2					,		"""2"""		)
      skip_list.insert(4					,		"""4"""		)
      skip_list.insert(6					,		"""4"""		)
      skip_list.insert(4					,		"""5"""		)
      skip_list.insert(8					,		"""4"""		)
      skip_list.insert(9					,		"""4"""		)

      skip_list.delete(4		)

      print(lowerCAmelCase__		)


if __name__ == "__main__":
       import doctest

       doctest.testmod()
       main()




"""simple docstring"""






import argparse
from pathlib import Path

from transformers import AutoConfig, AutoTokenizer, RagConfig, RagSequenceForGeneration, RagTokenForGeneration


def 			UpperCAmelCase__       (				lowerCAmelCase__     :Any					,		lowerCAmelCase__     :str					,		lowerCAmelCase__     :str					,		lowerCAmelCase__     :Path					,		lowerCAmelCase__     :str = None					,		lowerCAmelCase__     :str = None					,		lowerCAmelCase__     :str = None					,		) ->    Optional[int]:
      '''simple docstring'''


      if config_name_or_path is None:
            lowercase														=	"""facebook/rag-token-base""" if model_type == """rag_token""" else """facebook/rag-sequence-base"""

      if generator_tokenizer_name_or_path is None:
            lowercase														=	generator_name_or_path

      if question_encoder_tokenizer_name_or_path is None:
            lowercase														=	question_encoder_name_or_path

      lowercase														=	RagTokenForGeneration if model_type == """rag_token""" else RagSequenceForGeneration

      # Save model.
      lowercase														=	RagConfig.from_pretrained(lowerCAmelCase__		)
      lowercase														=	AutoConfig.from_pretrained(lowerCAmelCase__		)
      lowercase														=	AutoConfig.from_pretrained(lowerCAmelCase__		)

      lowercase														=	gen_config
      lowercase														=	question_encoder_config

      lowercase														=	model_class.from_pretrained_question_encoder_generator(
          lowerCAmelCase__					,		lowerCAmelCase__					,		config=lowerCAmelCase__		)
      rag_model.save_pretrained(lowerCAmelCase__		)

      # Sanity check.
      model_class.from_pretrained(lowerCAmelCase__		)

      # Save tokenizers.
      lowercase														=	AutoTokenizer.from_pretrained(lowerCAmelCase__		)
      gen_tokenizer.save_pretrained(dest_dir / """generator_tokenizer/"""		)
      lowercase														=	AutoTokenizer.from_pretrained(lowerCAmelCase__		)
      question_encoder_tokenizer.save_pretrained(dest_dir / """question_encoder_tokenizer/"""		)


if __name__ == "__main__":
       __lowerCAmelCase    :       int					     =argparse.ArgumentParser()
       parser.add_argument(
           """--model_type""",
           choices=["""rag_sequence""", """rag_token"""],
           required=True,
           type=str,
           help="""RAG model type: rag_sequence, rag_token""",
       )
       parser.add_argument("""--dest""", type=str, required=True, help="""Path to the output checkpoint directory.""")
       parser.add_argument("""--generator_name_or_path""", type=str, required=True, help="""Generator model identifier""")
       parser.add_argument(
           """--question_encoder_name_or_path""", type=str, required=True, help="""Question encoder model identifier"""
       )

       parser.add_argument(
           """--generator_tokenizer_name_or_path""",
           type=str,
           help="""Generator tokenizer identifier, if not specified, resolves to ``generator_name_or_path``""",
       )
       parser.add_argument(
           """--question_encoder_tokenizer_name_or_path""",
           type=str,
           help="""Question encoder tokenizer identifier, if not specified, resolves to ``question_encoder_name_or_path``""",
       )
       parser.add_argument(
           """--config_name_or_path""",
           type=str,
           help=(
               """Identifier of the model config to use, if not provided, resolves to a base config for a given"""
               """ ``model_type``"""
           ),
       )

       __lowerCAmelCase    :       List[str]					     =parser.parse_args()

       __lowerCAmelCase    :       Dict					     =Path(args.dest)
       dest_dir.mkdir(exist_ok=True)

       consolidate(
           args.model_type,
           args.generator_name_or_path,
           args.question_encoder_name_or_path,
           dest_dir,
           args.config_name_or_path,
           args.generator_tokenizer_name_or_path,
           args.question_encoder_tokenizer_name_or_path,
       )



