/// Call .into() on each element in a vec! initialization.
macro_rules!vec_into{($($i:expr),*)=>(vec![$($i.into()),*]);}/// Call .into() on each key and value in a hashmap! initialization.
macro_rules!indexmap_into{($($key:expr => $value:expr),*)=>(indexmap!{$($key.into()=>$value.into()),*})}