Macro search_provider

macro_rules! search_provider {
    (
        id: $id:expr,
        name: $name:expr,
        description: $desc:expr,
        $(priority: $priority:expr,)?
        $(result_types: [$($result_type:expr),*],)?
        $(supports_facets: $facets:expr,)?
        $(supports_suggestions: $suggestions:expr,)?
        search: $search_fn:expr,
        $(suggestions: $suggestions_fn:expr,)?
        $(health_check: $health_fn:expr,)?
    ) => { ... };
    (@priority) => { ... };
    (@priority $priority:expr) => { ... };
    (@supports_facets) => { ... };
    (@supports_facets $facets:expr) => { ... };
    (@supports_suggestions) => { ... };
    (@supports_suggestions $suggestions:expr) => { ... };
}

Create a search provider for a plugin with convenient syntax