

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


a__				=		'''sshleifer/bart-tiny-random'''
a__				=		'''patrickvonplaten/t5-tiny-random'''

@require_torch
class 				UpperCAmelCase_		(			unittest.TestCase   ):
							"""simple docstring"""







							@cached_property
							def 				__lowercase				(			self       )    ->    Optional[int]:
												return AutoConfig.from_pretrained(_a       )


							def 				__lowercase				(			self       )    ->    Tuple:
												_a      ,					*_a	:    Optional[int]         =		create_student_by_copying_alternating_layers(_a       ,							tempfile.mkdtemp()       ,							e=1       ,							d=1       )
												self.assertEqual(student.config.num_hidden_layers       ,							1       )


							def 				__lowercase				(			self       )    ->    Union[str, Any]:
												_a      ,					*_a	:    Union[str, Any]         =		create_student_by_copying_alternating_layers(_a       ,							tempfile.mkdtemp()       ,							e=1       ,							d=_a       )


							def 				__lowercase				(			self       )    ->    Optional[int]:
												_a      ,					*_a	:    Optional[int]         =		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 				__lowercase				(			self       )    ->    Dict:
												_a      ,					*_a	:    Optional[Any]         =		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 				__lowercase				(			self       )    ->    List[str]:
												with self.assertRaises(_a       ):
																	create_student_by_copying_alternating_layers(_a       ,							tempfile.mkdtemp()       ,							e=_a       ,							d=_a       )






import re

import jax.numpy as jnp
from flax.traverse_util import flatten_dict, unflatten_dict
from jax.random import PRNGKey

from ..utils import logging


a__				=		logging.get_logger(__name__)



def    __UpperCAmelCase (	__a      :			Dict	)			->     Tuple:

					"""simple docstring"""

					_a	:    Any         =		R'''\w+[.]\d+'''
					_a	:    Union[str, Any]         =		re.findall(__a		,__a	)
					for pat in pats:
										_a	:    int         =		key.replace(__a		,'''_'''.join(pat.split('''.'''	)	)	)
					return key



def    __UpperCAmelCase (	__a      :			List[str]		,__a      :			Union[str, Any]		,__a      :			Optional[int]	)			->     Tuple:

					"""simple docstring"""

					_a	:    Dict         =		pt_tuple_key[:-1] + ('''scale''',)
					if (
					    any('''norm''' in str_ for str_ in pt_tuple_key	)
					    and (pt_tuple_key[-1] == "bias")
					    and (pt_tuple_key[:-1] + ("bias",) not in random_flax_state_dict)
					    and (pt_tuple_key[:-1] + ("scale",) in random_flax_state_dict)
					):
										_a	:    Dict         =		pt_tuple_key[:-1] + ('''scale''',)
										return renamed_pt_tuple_key, pt_tensor
					elif pt_tuple_key[-1] in ["weight", "gamma"] and pt_tuple_key[:-1] + ("scale",) in random_flax_state_dict:
										_a	:    Optional[int]         =		pt_tuple_key[:-1] + ('''scale''',)
										return renamed_pt_tuple_key, pt_tensor

					# embedding
					if pt_tuple_key[-1] == "weight" and pt_tuple_key[:-1] + ("embedding",) in random_flax_state_dict:
										_a	:    Union[str, Any]         =		pt_tuple_key[:-1] + ('''embedding''',)
										return renamed_pt_tuple_key, pt_tensor

					# conv layer
					_a	:    Tuple         =		pt_tuple_key[:-1] + ('''kernel''',)
					if pt_tuple_key[-1] == "weight" and pt_tensor.ndim == 4:
										_a	:    List[str]         =		pt_tensor.transpose(2		,3		,1		,0	)
										return renamed_pt_tuple_key, pt_tensor

					# linear layer
					_a	:    Dict         =		pt_tuple_key[:-1] + ('''kernel''',)
					if pt_tuple_key[-1] == "weight":
										_a	:    Union[str, Any]         =		pt_tensor.T
										return renamed_pt_tuple_key, pt_tensor

					# old PyTorch layer norm weight
					_a	:    Dict         =		pt_tuple_key[:-1] + ('''weight''',)
					if pt_tuple_key[-1] == "gamma":
										return renamed_pt_tuple_key, pt_tensor

					# old PyTorch layer norm bias
					_a	:    Union[str, Any]         =		pt_tuple_key[:-1] + ('''bias''',)
					if pt_tuple_key[-1] == "beta":
										return renamed_pt_tuple_key, pt_tensor

					return pt_tuple_key, pt_tensor







def    __UpperCAmelCase (	__a      :			Dict		,__a      :			str		,__a      :			str=42	)			->     Optional[int]:

					"""simple docstring"""

					_a	:    Tuple         =		{k: v.numpy() for k, v in pt_state_dict.items()}

					# Step 2: Since the model is stateless, get random Flax params
					_a	:    List[Any]         =		flax_model.init_weights(PRNGKey(__a	)	)

					_a	:    Optional[int]         =		flatten_dict(__a	)
					_a	:    Tuple         =		{}

					# Need to change some parameters name to match Flax names
					for pt_key, pt_tensor in pt_state_dict.items():
										_a	:    List[str]         =		rename_key(__a	)
										_a	:    Optional[Any]         =		tuple(renamed_pt_key.split('''.'''	)	)

										# Correctly rename weight parameters
										_a      ,					_a	:    List[str]         =		rename_key_and_reshape_tensor(__a		,__a		,__a	)

										if flax_key in random_flax_state_dict:
															if flax_tensor.shape != random_flax_state_dict[flax_key].shape:
																				raise ValueError(
																				    F"""PyTorch checkpoint seems to be incorrect. Weight {pt_key} was expected to be of shape """
																				    F"""{random_flax_state_dict[flax_key].shape}, but is {flax_tensor.shape}."""	)

        # also add unexpected weight so that warning is thrown
										_a	:    Dict         =		jnp.asarray(__a	)

					return unflatten_dict(__a	)



