




from __future__ import annotations

import unittest

from transformers import is_tf_available
from transformers.testing_utils import require_sentencepiece, require_tf, require_tokenizers, slow


if is_tf_available():
		import tensorflow as tf

		from transformers import AutoTokenizer, TFAutoModelForSeqaSeqLM


@require_tf
@require_sentencepiece
@require_tokenizers
class 							__UpperCamelCase			( unittest.TestCase  ):





				'''simple docstring'''



				@slow
				def       __snake_case		( self						):
											lowerCAmelCase   =		TFAutoModelForSeqaSeqLM.from_pretrained('''google/mt5-small'''						)
											lowerCAmelCase   =		AutoTokenizer.from_pretrained('''google/mt5-small'''						)

											lowerCAmelCase   =		tokenizer('''Hello there'''       , return_tensors='''tf'''						).input_ids
											lowerCAmelCase   =		tokenizer('''Hi I am'''       , return_tensors='''tf'''						).input_ids

											lowerCAmelCase   =		model(UpperCAmelCase_       , labels=UpperCAmelCase_						).loss
											lowerCAmelCase   =		-tf.math.reduce_mean(UpperCAmelCase_						).numpy()

											lowerCAmelCase   =		-21.228168
											self.assertTrue(abs(mtf_score - EXPECTED_SCORE						) < 2E-4						)









from ...configuration_utils import PretrainedConfig
from ...utils import logging


UpperCAmelCase_						=logging.get_logger(__name__)

UpperCAmelCase_						={
    """google/switch-base-8""": """https://huggingface.co/google/switch-base-8/blob/main/config.json""",
}


class 							__UpperCamelCase			( __UpperCAmelCase  ):





				'''simple docstring'''



				__a							: Any										="""switch_transformers"""
				__a							: Union[str, Any]										=["""past_key_values"""]
				__a							: Dict										={"""hidden_size""": """d_model""", """num_attention_heads""": """num_heads""", """num_hidden_layers""": """num_layers"""}



				def __init__( self       , UpperCAmelCase_=3_21_28       , UpperCAmelCase_=7_68       , UpperCAmelCase_=64       , UpperCAmelCase_=20_48       , UpperCAmelCase_=64       , UpperCAmelCase_=12       , UpperCAmelCase_=3       , UpperCAmelCase_=12       , UpperCAmelCase_=3       , UpperCAmelCase_=12       , UpperCAmelCase_=8       , UpperCAmelCase_=False       , UpperCAmelCase_=0.01       , UpperCAmelCase_="float32"       , UpperCAmelCase_=False       , UpperCAmelCase_=32       , UpperCAmelCase_=1_28       , UpperCAmelCase_=0.1       , UpperCAmelCase_=1E-6       , UpperCAmelCase_=0.001       , UpperCAmelCase_=0.001       , UpperCAmelCase_=1.0       , UpperCAmelCase_="relu"       , UpperCAmelCase_=True       , UpperCAmelCase_=False       , UpperCAmelCase_=True       , UpperCAmelCase_=0       , UpperCAmelCase_=1       , **UpperCAmelCase_       , ):
											lowerCAmelCase   =		vocab_size
											lowerCAmelCase   =		d_model
											lowerCAmelCase   =		d_kv
											lowerCAmelCase   =		d_ff

											lowerCAmelCase   =		num_sparse_encoder_layers

											lowerCAmelCase   =		num_layers
											lowerCAmelCase   =		(
											    num_decoder_layers if num_decoder_layers is not None else self.num_layers
											)  # default = symmetry
											lowerCAmelCase   =		num_sparse_decoder_layers

											# This tells us, each how many encoder layer we'll have to set a sparse layer.
											if self.num_sparse_encoder_layers > 0:
																		lowerCAmelCase   =		self.num_layers // self.num_sparse_encoder_layers
											else:
																		lowerCAmelCase   =		self.num_layers  # HACK: this will create 0 sparse layers

											# This tells us, each how many encoder layer we'll have to set a sparse layer.
											if self.num_sparse_decoder_layers > 0:
																		lowerCAmelCase   =		self.num_decoder_layers // self.num_sparse_decoder_layers
											else:
																		lowerCAmelCase   =		self.num_decoder_layers  # HACK: this will create 0 sparse layers

											lowerCAmelCase   =		num_heads
											lowerCAmelCase   =		num_experts
											lowerCAmelCase   =		expert_capacity
											lowerCAmelCase   =		router_bias
											lowerCAmelCase   =		router_jitter_noise
											if router_dtype not in ["float32", "float16", "bfloat16"]:
																		raise ValueError(F"""`router_dtype` must be one of 'float32', 'float16' or 'bfloat16', got {router_dtype}"""						)
											lowerCAmelCase   =		router_dtype

											lowerCAmelCase   =		router_ignore_padding_tokens
											lowerCAmelCase   =		relative_attention_num_buckets
											lowerCAmelCase   =		relative_attention_max_distance

											lowerCAmelCase   =		dropout_rate
											lowerCAmelCase   =		layer_norm_epsilon
											lowerCAmelCase   =		initializer_factor
											lowerCAmelCase   =		feed_forward_proj
											lowerCAmelCase   =		use_cache
											lowerCAmelCase   =		add_router_probs

											lowerCAmelCase   =		router_z_loss_coef
											lowerCAmelCase   =		router_aux_loss_coef

											lowerCAmelCase   =		self.feed_forward_proj.split('''-'''						)
											lowerCAmelCase   =		act_info[-1]
											lowerCAmelCase   =		act_info[0] == '''gated'''

											if len(UpperCAmelCase_						) > 1 and act_info[0] != "gated" or len(UpperCAmelCase_						) > 2:
																		raise ValueError(
																		    F"""`feed_forward_proj`: {feed_forward_proj} is not a valid activation function of the dense layer."""
																		    '''Please make sure `feed_forward_proj` is of the format `gated-{ACT_FN}` or `{ACT_FN}`, e.g. '''
																		    '''\'gated-gelu\' or \'relu\''''						)

											# for backwards compatibility
											if feed_forward_proj == "gated-gelu":
																		lowerCAmelCase   =		'''gelu_new'''

											super().__init__(
											    pad_token_id=UpperCAmelCase_       , eos_token_id=UpperCAmelCase_       , is_encoder_decoder=UpperCAmelCase_       , **UpperCAmelCase_       , )



