Macro dbus_macros::dbus_prototypes

macro_rules! dbus_prototypes {
    ($interface_name:expr, $class_name:ident, ) => { ... };
    ($interface_name:expr, $class_name:ident, fn $func_name:ident ( $( $arg:ident : $arg_type:ty ),* ) -> $return_type:ty; $($rest:tt)*) => { ... };
    ($interface_name:expr, $class_name:ident, fn $func_name:ident ( $( $arg:ident : $arg_type:ty ),* ) ; $($rest:tt)*) => { ... };
}