The public key used to sign packages in your APT repository is stored in an outdated format. This format, known as the legacy trusted keyring, is no longer recommended for use and is considered deprecated. To fix this warning, you can update the key to the new format using the apt-key command. 

1. Backup your legacy trusted keyring: sudo cp /etc/apt/trusted.gpg /etc/apt/trusted.gpg.bak
2. Remove the legacy trusted keyring: sudo rm /etc/apt/trusted.gpg
3. Import the key into the new format: sudo apt-key add /etc/apt/trusted.gpg.bak
3. Update the package list: sudo apt update
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence