import type { DocumentSnapshot } from '@lemasc/firebase-wrapper/firestore';
declare type BaseFields = {
    id: string;
    hasPendingWrites?: boolean;
    __snapshot?: DocumentSnapshot;
};
export declare type ValidatedDocument<T extends Record<string, unknown> = Record<string, unknown>> = BaseFields & T & {
    exists: true;
    validated: true;
};
declare type UnvalidatedDocument = BaseFields & {
    exists: boolean;
    validated: false;
};
export declare type Document<T extends Record<string, unknown> = Record<string, unknown>> = ValidatedDocument<T> | UnvalidatedDocument;
/**
 * Returns true if the given document is existed and validated against the schema.
 */
export declare const isDocumentValid: <Data extends Record<string, unknown>>(doc: Document<Data>) => doc is ValidatedDocument<Data>;
export {};