{"ast_node_type":"import","tokens":[{"end":57,"kind":"keyword","start":0,"text":"///"}]}
/// # use ide_db::syntax_helpers::format_string_exprs::*;
/// ```rust
/// assert_eq!(with_placeholders(vec![Arg::Ident("ident".to_owned()), Arg::Placeholder, Arg::Expr("expr + 2".to_owned())]), vec!["ident".to_owned(), "$1".to_owned(), "expr + 2".to_owned()])