src/transformers/models/m2m_100/modeling_m2m_100.py/M2M100ForConditionalGeneration/__init__
class M2M100ForConditionalGeneration:    def __init__(self, config: M2M100Config):
        super().__init__(config)
        self.model = M2M100Model(config)
        self.lm_head = nn.Linear(config.d_model, self.model.shared.num_embeddings, bias=False)

        self.init_weights()