Macro frame_benchmarking::benchmarks_iter

macro_rules! benchmarks_iter {
    (
		{ $( $common:tt )* }
		( $( $names:ident )* )
		$name:ident { $( $code:tt )* }: _ ( $origin:expr $( , $arg:expr )* )
		$( $rest:tt )*
	) => { ... };
    (
		{ $( $common:tt )* }
		( $( $names:ident )* )
		$name:ident { $( $code:tt )* }: $dispatch:ident ( $origin:expr $( , $arg:expr )* )
		$( $rest:tt )*
	) => { ... };
    (
		{ $( $common:tt )* }
		( $( $names:ident )* )
		$name:ident { $( $code:tt )* }: { $eval:expr }
		$( $rest:tt )*
	) => { ... };
    ( { $( $common:tt )* } ( $( $names:ident )* ) ) => { ... };
}