Macro enso_shapely::_normalize_input

macro_rules! _normalize_input {
    ( $f:ident $f_args:tt $out:tt ) => { ... };
    ( $f:ident $f_args:tt [$($out:tt)*]
      $(#[$($meta:tt)*])*
      pub struct $name:tt $([$($params:tt)*])? {$($body:tt)*}
      $($rest:tt)*
    ) => { ... };
    ( $f:ident $f_args:tt [$($out:tt)*] $in:tt $($rest:tt)* ) => { ... };
}