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+ """ Yi model configuration"""
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+ from transformers.configuration_utils import PretrainedConfig
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+ from transformers.utils import logging
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+
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+ logger = logging.get_logger(__name__)
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+
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+ Yi_PRETRAINED_CONFIG_ARCHIVE_MAP = {}
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+
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+
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+ class YiConfig(PretrainedConfig):
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+ r"""
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+ This is the configuration class to store the configuration of a [`YiModel`]. It is used to instantiate an Yi
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+ model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
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+ defaults will yield a similar configuration to that of the Yi model.
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+
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+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
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+ documentation from [`PretrainedConfig`] for more information.
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+
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+
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+ Args:
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+ vocab_size (`int`, *optional*, defaults to 64000):
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+ Vocabulary size of the Yi model. Defines the number of different tokens that can be represented by the
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+ `inputs_ids` passed when calling [`YiModel`]
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+ hidden_size (`int`, *optional*, defaults to 4096):
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+ Dimension of the hidden representations.
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+ intermediate_size (`int`, *optional*, defaults to 11008):
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+ Dimension of the MLP representations.
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+ num_hidden_layers (`int`, *optional*, defaults to 32):
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+ Number of hidden layers in the Transformer encoder.
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+ num_attention_heads (`int`, *optional*, defaults to 32):
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+ Number of attention heads for each attention layer in the Transformer encoder.
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+ num_key_value_heads (`int`, *optional*):
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+ This is the number of key_value heads that should be used to implement Grouped Query Attention. If
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+ `num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
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+ `num_key_value_heads=1 the model will use Multi Query Attention (MQA) otherwise GQA is used. When
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+ converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
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+ by meanpooling all the original heads within that group. For more details checkout [this
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+ paper](https://arxiv.org/pdf/2305.13245.pdf). If it is not specified, will default to
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+ `num_attention_heads`.
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+ hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
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+ The non-linear activation function (function or string) in the decoder.
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+ max_position_embeddings (`int`, *optional*, defaults to 4096):
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+ The maximum sequence length that this model might ever be used with. Typically set this to something large
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+ just in case (e.g., 512 or 1024 or 2048 or 4096).
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+ initializer_range (`float`, *optional*, defaults to 0.02):
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+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
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+ rms_norm_eps (`float`, *optional*, defaults to 1e-5):
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+ The epsilon used by the rms normalization layers.
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+ use_cache (`bool`, *optional*, defaults to `True`):
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+ Whether or not the model should return the last key/values attentions (not used by all models). Only
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+ relevant if `config.is_decoder=True`.
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+ tie_word_embeddings(`bool`, *optional*, defaults to `False`):
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+ Whether to tie weight embeddings
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+ output_attentions (`bool`, *optional*, defaults to `False`):
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+ Whether or not to output attentions.
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+ rope_theta (`float`, *optional*, defaults to 5000000.0):
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+ The base period of the RoPE embeddings.
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+ Example:
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+
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+ ```python
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+ >>> from transformers import YiModel, YiConfig
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+
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+ >>> # Initializing a Yi style configuration
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+ >>> configuration = YiConfig()
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+
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+ >>> # Initializing a model from the Yi style configuration
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+ >>> model = YiModel(configuration)
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+
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+ >>> # Accessing the model configuration
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+ >>> configuration = model.config
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+ ```"""
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+ model_type = "Yi"
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+ keys_to_ignore_at_inference = ["past_key_values"]
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+
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+ def __init__(
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+ self,
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+ vocab_size=64000,
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+ hidden_size=4096,
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+ intermediate_size=11008,
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+ num_hidden_layers=32,
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+ num_attention_heads=32,
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+ num_key_value_heads=4,
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+ hidden_act="silu",
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+ max_position_embeddings=4096,
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+ initializer_range=0.02,
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+ rms_norm_eps=1e-5,
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+ use_cache=True,
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+ pad_token_id=0,
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+ bos_token_id=1,
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+ eos_token_id=2,
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+ tie_word_embeddings=False,
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+ output_attentions=False,
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+ rope_theta=5000000.0,
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+ **kwargs,
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+ ):
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+ self.vocab_size = vocab_size
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+ self.max_position_embeddings = max_position_embeddings
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+ self.hidden_size = hidden_size
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+ self.intermediate_size = intermediate_size
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+ self.num_hidden_layers = num_hidden_layers
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+ self.num_attention_heads = num_attention_heads
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+
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+ # for backward compatibility
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+ if num_key_value_heads is None:
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+ num_key_value_heads = num_attention_heads
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+
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+ self.num_key_value_heads = num_key_value_heads
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+ self.hidden_act = hidden_act
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+ self.initializer_range = initializer_range
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+ self.rms_norm_eps = rms_norm_eps
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+ self.use_cache = use_cache
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+ self.output_attentions = output_attentions
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+ self.rope_theta = rope_theta
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+
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+ super().__init__(
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+ pad_token_id=pad_token_id,
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+ bos_token_id=bos_token_id,
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+ eos_token_id=eos_token_id,
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+ tie_word_embeddings=tie_word_embeddings,
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+ **kwargs,
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+ )