src/transformers/models/codegen/modeling_codegen.py/CodeGenForCausalLM/__init__
class CodeGenForCausalLM:    def __init__(self, config):
        super().__init__(config)
        self.transformer = CodeGenModel(config)
        self.lm_head = nn.Linear(config.n_embd, config.vocab_size)

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