use std::time::Duration;use super::ContextualUserFragment;#[derive(Debug, Clone, PartialEq)]pub(crate) struct UserShellCommand {    pub(crate) command: String,    pub(crate) exit_code: i32,    pub(crate) duration_seconds: f64,    pub(crate) output: String,}impl UserShellCommand {    pub(crate) fn new(        command: impl Into<String>,        exit_code: i32,        duration: Duration,        output: impl Into<String>,    ) -> Self {        Self {            command: command.into(),            exit_code,            duration_seconds: duration.as_secs_f64(),            output: output.into(),        }    }}impl ContextualUserFragment for UserShellCommand {    fn role(&self) -> &'static str {        "user"    }    fn markers(&self) -> (&'static str, &'static str) {        Self::type_markers()    }    fn type_markers() -> (&'static str, &'static str) {        ("<user_shell_command>", "</user_shell_command>")    }    fn body(&self) -> String {        format!(            "\n<command>\n{}\n</command>\n<result>\nExit code: {}\nDuration: {:.4} seconds\nOutput:\n{}\n</result>\n",            self.command, self.exit_code, self.duration_seconds, self.output,        )    }}