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# **STDP学习器step函数存在数值类型异常** - 在使用STDP学习器进行训练时，遇到了张量和None进行减法运算的异常，源码报错来自： `self.synapse.weight.grad = self.synapse.weight.grad - delta_w`，在以下完整代码中，`length = self.in_spike_monitor.records.__len__()`值为0，代表本轮并未接收到脉冲信号，即不会进入`for _ in range(length):`循环，此时`delta_w `恒为None，但`on_grad`且`self.synapse.weight.grad`不为None是，就会出现数据类型异常，张量在和None做减法。 ``` def step(self, on_grad: bool = True, scale: float = 1.): length = self.in_spike_monitor.records.__len__() delta_w...

Hello, I'm currently working with the `transformers` library to train a model on causal language modeling tasks using the `MambaForCausalLM` class. However, I've noticed that the typical approach to training...