Kaba class Database ed

class Database
    var files: shared![Collection]
    var lists: shared![Collection]
    var m: shared![Mongo]
    var medium: shared![Collection]

    # constructors
    func mut __init__()

    # functions
    func mut add_to_list(name: string, _ids: string[])
    func by_hash(hash: string) -> DbFile
    func by_id(id: string) -> DbFile
    func mut check()
    func mut check_existence(files: DbFile[])
    func mut create_list(name: string)
    func mut delete_by_path(path: Path)
    func mut delete_list(name: string)
    func mut drop(f: DbFile)
    func find(filter: string) -> DbFile[]
    func find_by_path(path: Path) -> DbFile
    func get_in_dir(_dir: Path, recursive: bool) -> DbFile[]
    func get_list(name: string) -> string[]
    func get_medium_data(f: DbFile) -> Any
    func has_hash(hash: string) -> bool
    func has_medium(f: DbFile) -> bool
    func has_path(path: Path) -> bool
    func info()
    func list_lists() -> string[]
    func mut list_remove(name: string, i0: i32, i1: i32)
    func list_tags(key: string) -> TagResult[]
    func mediumify(out f: DbFile)
    func mut save(out f: DbFile)
    func mut update_links(files: DbFile[])