src/transformers/models/gpt_neo/modeling_gpt_neo.py/GPTNeoForCausalLM/__init__
class GPTNeoForCausalLM:    def __init__(self, config):
        super().__init__(config)
        self.transformer = GPTNeoModel(config)
        self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)

        # Initialize weights and apply final processing
        self.post_init()