帮我写一个ChatGPT的代码

我可以给你一个简单的ChitGPT代码：

import torch
import torch.nn as nn

class ChitGPT(nn.Module):
def __init__(self):
super(ChitGPT, self).__init__()
self.lstm = nn.LSTM(input_size=128, hidden_size=128, num_layers=2, batch_first=True)
self.fc = nn.Linear(128, 128)

def forward(self, x):
x, _ = self.lstm(x)
x = self.fc(x)
return x