{"p": "can-20", "op": "mint", "tick": "can", "amt": "1000", "rows": [{"df": "qa", "content": [{"q": "How to log in Solana without using Rust's println! macro?", "a": "First,  ensure that you have installed the log4rs library. Add the following dependency to your `Cargo.toml` file:\n\n   ```toml\n   [dependencies]\n   log4rs ="}]}]}