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"""
HuggingFace PretrainedConfig for InterpGPT / TaskGPT.

Mirrors gpt_model.GPTConfig but subclasses transformers.PretrainedConfig
so `AutoConfig` / `AutoModel.from_pretrained(..., trust_remote_code=True)` work.
"""
from transformers import PretrainedConfig


class InterpGPTConfig(PretrainedConfig):
    model_type = "interpgpt"

    def __init__(
        self,
        vocab_size: int = 8192,
        max_seq_len: int = 512,
        n_layers: int = 6,
        n_heads: int = 8,
        d_model: int = 512,
        d_ff: int = 2048,
        dropout: float = 0.1,
        pad_id: int = 0,
        bias: bool = False,
        variant: str = "standard",
        **kwargs,
    ):
        self.vocab_size = vocab_size
        self.max_seq_len = max_seq_len
        self.n_layers = n_layers
        self.n_heads = n_heads
        self.d_model = d_model
        self.d_ff = d_ff
        self.dropout = dropout
        self.pad_id = pad_id
        self.bias = bias
        self.variant = variant
        kwargs.pop("pad_token_id", None)
        super().__init__(pad_token_id=pad_id, **kwargs)