Method visit

datafusion/common/src/format.rs:199–201

(&self, v: &mut V, key: &str, description: &'static str)

impl ConfigField for ExplainFormat {
    fn visit<V: Visit>(&self, v: &mut V, key: &str, description: &'static str) {
        v.some(key, self, description)
    }

    fn set(&mut self, _: &str, value: &str) -> Result<()> {
        *self = ExplainFormat::from_str(value)?;