src/transformers/models/xlm/modeling_xlm.py/XLMForQuestionAnswering/__init__
class XLMForQuestionAnswering:    def __init__(self, config):
        super().__init__(config)

        self.transformer = XLMModel(config)
        self.qa_outputs = SQuADHead(config)

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