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# Context
Now powdr can allow handle log in cli option.
Example
```bash
powdr --log DEBUG pil test_data/asm/book/hello_world.asm --field bn254 --force --inputs 0
```
--log value is LevelFilter
```rust
pub enum LevelFilter {
/// A level lower than all log levels.
Off,
/// Corresponds to the `Error` log level.
Error,
/// Corresponds to the `Warn` log level.
Warn,
/// Corresponds to the `Info` log level.
Info,
/// Corresponds to the `Debug` log level.
Debug,
/// Corresponds to the `Trace` log level.
Trace,
}
```
Fixes #164