Macro pipewire_wrapper::events_builder_build

macro_rules! events_builder_build {
    ($events_struct:ident<$lifetime:lifetime, $generic_type:ident>, $events_raw:ident, $($callback_field:ident => $callback:ident,)*) => { ... };
    ($events_struct:ident<$lifetime:lifetime>, $events_raw:ident, $($callback_field:ident => $callback:ident,)*) => { ... };
    ($events_struct:ident, $events_raw:ident, $($callback_field:ident => $callback:ident,)*) => { ... };
    (@function_body $self:ident, $events_struct:ident, $events_raw:ident, $($callback_field:ident => $callback:ident,)*) => { ... };
    (@function_body_generic $self:ident, $events_struct:ident<$generic_type:ident>, $events_raw:ident, $($callback_field:ident => $callback:ident,)*) => { ... };
}

Implement build method for Events struct builder.