Function notcoal::filter_with_path

pub fn filter_with_path<P>(
    db: &P,
    query_tag: &str,
    leave_tag: bool,
    sync_tags: bool,
    filters: &[Filter]
) -> Result<usize>where
    P: AsRef<Path>,

Filters messages returned by the query, but takes a database path rather than a notmuch::Database