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from transformers import PretrainedConfig


class DFMConfig(PretrainedConfig):
    model_type = "dfm"

    def __init__(
        self,
        vocab_size=50257,
        hidden_size=2048,
        cond_dim=256,
        n_blocks=21,
        n_heads=32,
        dropout=0.1,
        sequence_length=1024,
        source_distribution="mask",
        flow_scheduler_type="polynomial",
        flow_exponent=1.0,
        flow_loss_function="generalized_kl",
        sampling_steps=1024,
        bos_token_id=50256,
        eos_token_id=50256,
        mask_token_id=50257,
        tokenizer_name="gpt2",
        dtype="bfloat16",
        **kwargs,
    ):
        super().__init__(
            bos_token_id=bos_token_id,
            eos_token_id=eos_token_id,
            **kwargs,
        )
        self.vocab_size = vocab_size
        self.hidden_size = hidden_size
        self.cond_dim = cond_dim
        self.n_blocks = n_blocks
        self.n_heads = n_heads
        self.dropout = dropout
        self.sequence_length = sequence_length
        self.source_distribution = source_distribution
        self.flow_scheduler_type = flow_scheduler_type
        self.flow_exponent = flow_exponent
        self.flow_loss_function = flow_loss_function
        self.sampling_steps = sampling_steps
        self.mask_token_id = mask_token_id
        self.tokenizer_name = tokenizer_name
        self.dtype = dtype