use std::fmt::Display;use serde::Serialize;#[derive(Clone, Debug, Eq, PartialEq, Serialize)]pub struct ExecCall {    pub program: String,    pub args: Vec<String>,}impl ExecCall {    pub fn new(program: &str, args: &[&str]) -> Self {        Self {            program: program.to_string(),            args: args.iter().map(|&s| s.into()).collect(),        }    }}impl Display for ExecCall {    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {        write!(f, "{}", self.program)?;        for arg in &self.args {            write!(f, " {arg}")?;        }        Ok(())    }}