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from transformers import PreTrainedModel
from .configuration_test import TestConfig
import torch.nn as nn
from transformers import AutoModelForMaskedLM


class TestModel(PreTrainedModel):
    config_class = TestConfig

    def __init__(self, config: TestConfig):
        super().__init__(config)
        self.model1 = nn.Linear(config.input_dim, config.output_dim)
        self.model2 = AutoModelForMaskedLM.from_pretrained("bert-base-uncased")
        self.model3 = None

    def forward(self, tensor):
        return self.model1(tensor)