use settings::{RegisterSetting, Settings}; /// Settings for configuring REPL display and behavior.#[derive(Clone, Debug, RegisterSetting)]pub struct ReplSettings {    /// Maximum number of lines to keep in REPL's scrollback buffer.    /// Clamped with [4, 256] range.    ///    /// Default: 32    pub max_lines: usize,    /// Maximum number of columns to keep in REPL's scrollback buffer.    /// Clamped with [20, 512] range.    ///    /// Default: 128    pub max_columns: usize,} impl Settings for ReplSettings {    fn from_settings(content: &settings::SettingsContent) -> Self {        let repl = content.repl.as_ref().unwrap();         Self {            max_lines: repl.max_lines.unwrap(),            max_columns: repl.max_columns.unwrap(),        }    }}