/**
 * Thrown when a projection query settles without covering every requested id: the
 * wrapped resource resolved, but `parseData` produced no item for some of the
 * ids the projection entry asked for.
 */
export declare class ProjectionItemMissingError extends Error {
    readonly name = "ProjectionItemMissingError";
    /** The requested ids that no parsed item matched. */
    readonly ids: readonly unknown[];
    constructor(ids: readonly unknown[], serializedIds: readonly string[]);
}