how to install libtorchtext for cpp project use? please give some operation .thanks

[mullerhai]

🐛 Bug

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# For security purposes, please check the contents of collect_env.py before running it.
python collect_env.py
python -c "import torchtext; print(\"torchtext version is \", torchtext.__version__)"

• PyTorch Version (e.g., 1.0):
• OS (e.g., Linux):
• How you installed PyTorch (conda, pip, source):
• Build command you used (if compiling from source):
• Python version:
• CUDA/cuDNN version:
• GPU models and configuration:
• Any other relevant information:

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