This PR fixes #2 by applying the $argn_ syntax to BindingIdentifiers inside of ObjectBindings, ArrayBindings and BindingWithDefaults. n is based on the argument number of the ObjectBinding, etc., so this

(function ({x, y, z}, w) {})

would become this.

(function ({$arg0_lackingDude, $arg0_farTeapot, $arg0_mellowMode}, $arg1_eatableSaving) {})

It also fixes a typo in the README in which the object destructuring syntax of the import statement is omitted.