Interface MetadataLayer

interface MetadataLayer {
    create<Type extends NodeType = NodeType>(
        metadata: MetaFragment<Type>,
    ): Promise<MetaFragment<Type>>;
    delete(): any;
    get<Type extends [] | NodeType | NodeType[] = NodeType>(): Promise<
        Type extends NodeType[]
            ? {
                [K in string
                | number
                | symbol]: Type<Type>[K] extends NodeType
                    ? MetaFragment<any[any]>
                    : never
            }
            : Type extends []
                ? MetaFragment<NodeType>[]
                : Type extends NodeType ? MetaFragment<Type<Type>> : never,
    >;
    update<Type extends NodeType = NodeType>(
        metadata: MetaFragment<Type>,
    ): Promise<MetaFragment<Type>>;
}