Candy Machine mint-one-token extension command

Hello developers. There is a suggestion in the output after the following command:

$ ts-node ~/metaplex/js/packages/cli/src/candy-machine-v2-cli.ts mint_one_token  -e devnet     -k ~/.config/solana/id.json

The suggestion is: (Use node --trace-warnings ... to show where the warning was created)
Is there anybody who knows where can be placed it? I tried in every position of the command … errors over errors. Is there anybody who knows what is it? Thanks.