pub fn start(name: &str) -> Sexp {
        let mut v = vec![];
        v.push(Sexp::String(name.into()));
        Sexp::List(v)
    }
/// create an empty list type symbolic-expression
create an empty list type symbolic-expression
create an empty list type symbolic - expression
pub fn start(name: &str) -> Sexp {
        let mut v = vec![];
        v.push(Sexp::String(name.into()));
        Sexp::List(v)
    }
pub fn start ( name : & str ) -> Sexp { let mut v = vec ! [ ] ; v . push ( Sexp :: String ( name . into ( ) ) ) ; Sexp :: List ( v ) }
create an empty list type symbolic-expression
create an empty list type symbolic - expression
name
&str