import type { Collection, InferIdType, WithId, Document } from "mongodb";
import type { NestedProjectionOfTSchema } from "mongo-collection-helpers";
export declare class DocumentCache<TSchema extends Document> {
    #private;
    constructor(collection: Collection<TSchema>, projection: NestedProjectionOfTSchema<TSchema>, dontLoadDocuments: boolean, signal: AbortSignal | undefined);
    getDocument(id: InferIdType<TSchema>): Promise<WithId<TSchema> | null>;
    setDocument(id: InferIdType<TSchema>, doc: WithId<TSchema>): void;
}