from __future__ import annotations

import time

UpperCAmelCase_           =				list[tuple[int, int]]

UpperCAmelCase_           =				[
    [0, 0, 0, 0, 0, 0, 0],
    [0, 1, 0, 0, 0, 0, 0],  # 0 are free path whereas 1's are obstacles
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 1, 0, 0, 0, 0],
    [1, 0, 1, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 1, 0, 0],
]

UpperCAmelCase_           =				[[-1, 0], [0, -1], [1, 0], [0, 1]]  # up, left, down, right




class 			__magic_name__	:





   """simple docstring"""




   def __init__(						self       :	Optional[int]		,	_lowercase       :	int		,	_lowercase       :	int		,	_lowercase       :	int		,	_lowercase       :	int		,	_lowercase       :	Node | None				):



    """simple docstring"""



    _UpperCamelCase:  Dict    						=			pos_x
    _UpperCamelCase:  Dict    						=			pos_y
    _UpperCamelCase:  Tuple    						=			(pos_y, pos_x)
    _UpperCamelCase:  Dict    						=			goal_x
    _UpperCamelCase:  Optional[Any]    						=			goal_y
    _UpperCamelCase:  str    						=			parent




class 			__magic_name__	:





   """simple docstring"""




   def __init__(						self       :	str		,	_lowercase       :	tuple[int, int]		,	_lowercase       :	tuple[int, int]				):



    """simple docstring"""



    _UpperCamelCase:  int    						=			Node(start[1]		,	start[0]		,	goal[1]		,	goal[0]		,	_lowercase				)
    _UpperCamelCase:  Optional[Any]    						=			Node(goal[1]		,	goal[0]		,	goal[1]		,	goal[0]		,	_lowercase				)

    _UpperCamelCase:  Dict    						=			[self.start]
    _UpperCamelCase:  Optional[int]    						=			False



   def 	lowerCAmelCase    (						self       :	int				):



    """simple docstring"""



    while self.node_queue:
     _UpperCamelCase:  Dict    						=			self.node_queue.pop(0				)

     if current_node.pos == self.target.pos:
      _UpperCamelCase:  Dict    						=			True
      return self.retrace_path(_lowercase				)

     _UpperCamelCase:  Optional[Any]    						=			self.get_successors(_lowercase				)

     for node in successors:
      self.node_queue.append(_lowercase				)

    if not self.reached:
     return [self.start.pos]
    return None



   def 	lowerCAmelCase    (						self       :	List[Any]		,	_lowercase       :	Node				):



    """simple docstring"""



    _UpperCamelCase:  Union[str, Any]    						=			[]
    for action in delta:
     _UpperCamelCase:  Dict    						=			parent.pos_x + action[1]
     _UpperCamelCase:  List[Any]    						=			parent.pos_y + action[0]
     if not (0 <= pos_x <= len(grid[0]				) - 1 and 0 <= pos_y <= len(_lowercase				) - 1):
      continue

     if grid[pos_y][pos_x] != 0:
      continue

     successors.append(
         Node(_lowercase		,	_lowercase		,	self.target.pos_y		,	self.target.pos_x		,	_lowercase				)				)
    return successors



   def 	lowerCAmelCase    (						self       :	Optional[int]		,	_lowercase       :	Node | None				):



    """simple docstring"""



    _UpperCamelCase:  Optional[Any]    						=			node
    _UpperCamelCase:  List[str]    						=			[]
    while current_node is not None:
     path.append((current_node.pos_y, current_node.pos_x)				)
     _UpperCamelCase:  Optional[Any]    						=			current_node.parent
    path.reverse()
    return path




class 			__magic_name__	:





   """simple docstring"""




   def __init__(						self       :	Optional[Any]		,	_lowercase       :	Tuple		,	_lowercase       :	List[str]				):



    """simple docstring"""



    _UpperCamelCase:  Any    						=			BreadthFirstSearch(_lowercase		,	_lowercase				)
    _UpperCamelCase:  Any    						=			BreadthFirstSearch(_lowercase		,	_lowercase				)
    _UpperCamelCase:  List[str]    						=			False



   def 	lowerCAmelCase    (						self       :	Dict				):



    """simple docstring"""



    while self.fwd_bfs.node_queue or self.bwd_bfs.node_queue:
     _UpperCamelCase:  Optional[Any]    						=			self.fwd_bfs.node_queue.pop(0				)
     _UpperCamelCase:  Optional[int]    						=			self.bwd_bfs.node_queue.pop(0				)

     if current_bwd_node.pos == current_fwd_node.pos:
      _UpperCamelCase:  str    						=			True
      return self.retrace_bidirectional_path(
          _lowercase		,	_lowercase				)

     _UpperCamelCase:  Dict    						=			current_bwd_node
     _UpperCamelCase:  Optional[int]    						=			current_fwd_node

     _UpperCamelCase:  Union[str, Any]    						=			{
         self.fwd_bfs: self.fwd_bfs.get_successors(_lowercase				),
         self.bwd_bfs: self.bwd_bfs.get_successors(_lowercase				),
     }

     for bfs in [self.fwd_bfs, self.bwd_bfs]:
      for node in successors[bfs]:
       bfs.node_queue.append(_lowercase				)

    if not self.reached:
     return [self.fwd_bfs.start.pos]
    return None



   def 	lowerCAmelCase    (						self       :	str		,	_lowercase       :	Node		,	_lowercase       :	Node				):



    """simple docstring"""



    _UpperCamelCase:  Any    						=			self.fwd_bfs.retrace_path(_lowercase				)
    _UpperCamelCase:  Any    						=			self.bwd_bfs.retrace_path(_lowercase				)
    bwd_path.pop()
    bwd_path.reverse()
    _UpperCamelCase:  List[Any]    						=			fwd_path + bwd_path
    return path


if __name__ == "__main__":
  # all coordinates are given in format [y,x]
  import doctest

  doctest.testmod()
  UpperCAmelCase_           =				(0, 0)
  UpperCAmelCase_           =				(len(grid) - 1, len(grid[0]) - 1)
  for elem in grid:
    print(elem)

  UpperCAmelCase_           =				time.time()
  UpperCAmelCase_           =				BreadthFirstSearch(init, goal)
  UpperCAmelCase_           =				bfs.search()
  UpperCAmelCase_           =				time.time() - start_bfs_time

  print('''Unidirectional BFS computation time : ''', bfs_time)

  UpperCAmelCase_           =				time.time()
  UpperCAmelCase_           =				BidirectionalBreadthFirstSearch(init, goal)
  UpperCAmelCase_           =				bd_bfs.search()
  UpperCAmelCase_           =				time.time() - start_bd_bfs_time

  print('''Bidirectional BFS computation time : ''', bd_bfs_time)
import importlib
import json
import os
import sys
import tempfile
import unittest
from pathlib import Path

import transformers
import transformers.models.auto
from transformers.models.auto.configuration_auto import CONFIG_MAPPING, AutoConfig
from transformers.models.bert.configuration_bert import BertConfig
from transformers.models.roberta.configuration_roberta import RobertaConfig
from transformers.testing_utils import DUMMY_UNKNOWN_IDENTIFIER, get_tests_dir


sys.path.append(str(Path(__file__).parent.parent.parent.parent / '''utils'''))

from test_module.custom_configuration import CustomConfig  # noqa E402


UpperCAmelCase_           =				get_tests_dir('''fixtures/dummy-config.json''')




class 			__magic_name__	(		unittest.TestCase     ):





   """simple docstring"""




   def 	lowerCAmelCase    (						self       :	str				):



    """simple docstring"""



    _UpperCamelCase:  Dict    						=			0



   def 	lowerCAmelCase    (						self       :	Any				):



    """simple docstring"""



    self.assertIsNotNone(transformers.models.auto.__spec__				)
    self.assertIsNotNone(importlib.util.find_spec('''transformers.models.auto'''				)				)



   def 	lowerCAmelCase    (						self       :	Union[str, Any]				):



    """simple docstring"""



    _UpperCamelCase:  List[str]    						=			AutoConfig.from_pretrained('''bert-base-uncased'''				)
    self.assertIsInstance(_lowercase		,	_lowercase				)



   def 	lowerCAmelCase    (						self       :	int				):



    """simple docstring"""



    _UpperCamelCase:  int    						=			AutoConfig.from_pretrained(_lowercase				)
    self.assertIsInstance(_lowercase		,	_lowercase				)



   def 	lowerCAmelCase    (						self       :	List[Any]				):



    """simple docstring"""



    _UpperCamelCase:  List[Any]    						=			AutoConfig.from_pretrained(_lowercase				)
    self.assertIsInstance(_lowercase		,	_lowercase				)



   def 	lowerCAmelCase    (						self       :	Optional[int]				):



    """simple docstring"""



    _UpperCamelCase:  List[str]    						=			AutoConfig.for_model('''roberta'''				)
    self.assertIsInstance(_lowercase		,	_lowercase				)



   def 	lowerCAmelCase    (						self       :	List[str]				):



    """simple docstring"""



    with tempfile.TemporaryDirectory() as tmp_dir:
     # This model name contains bert and roberta, but roberta ends up being picked.
     _UpperCamelCase:  Union[str, Any]    						=			os.path.join(_lowercase		,	'''fake-roberta'''				)
     os.makedirs(_lowercase		,	exist_ok=_lowercase				)
     with open(os.path.join(_lowercase		,	'''config.json'''				)		,	'''w'''				) as f:
      f.write(json.dumps({}				)				)
     _UpperCamelCase:  Union[str, Any]    						=			AutoConfig.from_pretrained(_lowercase				)
     self.assertEqual(type(_lowercase				)		,	_lowercase				)



   def 	lowerCAmelCase    (						self       :	Dict				):



    """simple docstring"""



    try:
     AutoConfig.register('''custom'''		,	_lowercase				)
     # Wrong model type will raise an error
     with self.assertRaises(_lowercase				):
      AutoConfig.register('''model'''		,	_lowercase				)
     # Trying to register something existing in the Transformers library will raise an error
     with self.assertRaises(_lowercase				):
      AutoConfig.register('''bert'''		,	_lowercase				)

     # Now that the config is registered, it can be used as any other config with the auto-API
     _UpperCamelCase:  Union[str, Any]    						=			CustomConfig()
     with tempfile.TemporaryDirectory() as tmp_dir:
      config.save_pretrained(_lowercase				)
      _UpperCamelCase:  Any    						=			AutoConfig.from_pretrained(_lowercase				)
      self.assertIsInstance(_lowercase		,	_lowercase				)

    finally:
     if "custom" in CONFIG_MAPPING._extra_content:
      del CONFIG_MAPPING._extra_content["custom"]



   def 	lowerCAmelCase    (						self       :	Optional[int]				):



    """simple docstring"""



    with self.assertRaisesRegex(
        _lowercase		,	'''bert-base is not a local folder and is not a valid model identifier'''				):
     _UpperCamelCase:  Optional[int]    						=			AutoConfig.from_pretrained('''bert-base'''				)



   def 	lowerCAmelCase    (						self       :	Tuple				):



    """simple docstring"""



    with self.assertRaisesRegex(
        _lowercase		,	R'''aaaaaa is not a valid git identifier \(branch name, tag name or commit id\)'''				):
     _UpperCamelCase:  str    						=			AutoConfig.from_pretrained(_lowercase		,	revision='''aaaaaa'''				)



   def 	lowerCAmelCase    (						self       :	Union[str, Any]				):



    """simple docstring"""



    with self.assertRaisesRegex(
        _lowercase		,	'''hf-internal-testing/no-config-test-repo does not appear to have a file named config.json.'''		,	):
     _UpperCamelCase:  int    						=			AutoConfig.from_pretrained('''hf-internal-testing/no-config-test-repo'''				)



   def 	lowerCAmelCase    (						self       :	Dict				):



    """simple docstring"""



    with self.assertRaises(_lowercase				):
     _UpperCamelCase:  List[str]    						=			AutoConfig.from_pretrained('''hf-internal-testing/test_dynamic_model'''				)
    # If remote code is disabled, we can't load this config.
    with self.assertRaises(_lowercase				):
     _UpperCamelCase:  Optional[int]    						=			AutoConfig.from_pretrained('''hf-internal-testing/test_dynamic_model'''		,	trust_remote_code=_lowercase				)

    _UpperCamelCase:  Union[str, Any]    						=			AutoConfig.from_pretrained('''hf-internal-testing/test_dynamic_model'''		,	trust_remote_code=_lowercase				)
    self.assertEqual(config.__class__.__name__		,	'''NewModelConfig'''				)

    # Test config can be reloaded.
    with tempfile.TemporaryDirectory() as tmp_dir:
     config.save_pretrained(_lowercase				)
     _UpperCamelCase:  str    						=			AutoConfig.from_pretrained(_lowercase		,	trust_remote_code=_lowercase				)
    self.assertEqual(reloaded_config.__class__.__name__		,	'''NewModelConfig'''				)



   def 	lowerCAmelCase    (						self       :	Any				):



    """simple docstring"""



    class 			__magic_name__	(		__a     ):





       """simple docstring"""




       lowerCAmelCase   :     List[Any]	      = '''new-model'''

    try:
     AutoConfig.register('''new-model'''		,	_lowercase				)
     # If remote code is not set, the default is to use local
     _UpperCamelCase:  List[Any]    						=			AutoConfig.from_pretrained('''hf-internal-testing/test_dynamic_model'''				)
     self.assertEqual(config.__class__.__name__		,	'''NewModelConfigLocal'''				)

     # If remote code is disabled, we load the local one.
     _UpperCamelCase:  Union[str, Any]    						=			AutoConfig.from_pretrained('''hf-internal-testing/test_dynamic_model'''		,	trust_remote_code=_lowercase				)
     self.assertEqual(config.__class__.__name__		,	'''NewModelConfigLocal'''				)

     # If remote is enabled, we load from the Hub
     _UpperCamelCase:  Any    						=			AutoConfig.from_pretrained('''hf-internal-testing/test_dynamic_model'''		,	trust_remote_code=_lowercase				)
     self.assertEqual(config.__class__.__name__		,	'''NewModelConfig'''				)

    finally:
     if "new-model" in CONFIG_MAPPING._extra_content:
      del CONFIG_MAPPING._extra_content["new-model"]