Macro shell_command_tree

macro_rules! shell_command_tree {
    (
        $name:ident,
        $help: expr,
        $version: expr,
        $context: expr,
        [ $( $node:expr ),* ]
    ) => { ... };
    (
        $name:ident,
        $help: expr,
        $version: expr,
        [ $( $node:expr ),* ]
    ) => { ... };
}