src/transformers/models/nezha/modeling_nezha.py/NezhaForQuestionAnswering/__init__
class NezhaForQuestionAnswering:    def __init__(self, config):
        super().__init__(config)
        self.num_labels = config.num_labels

        self.nezha = NezhaModel(config, add_pooling_layer=False)
        self.qa_outputs = nn.Linear(config.hidden_size, config.num_labels)

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