import admin from 'firebase-admin';
import { FieldPath, OrderByDirection, WhereFilterOp } from 'firebase-admin/firestore';
export declare const VALID_OPERATORS: WhereFilterOp[];
export interface QueryFilter {
    field: string | FieldPath;
    operator: WhereFilterOp;
    value: unknown;
}
export interface QueryOrderBy {
    field: string;
    direction?: OrderByDirection;
}
export declare const normalizeDocument: (doc: admin.firestore.QueryDocumentSnapshot | admin.firestore.DocumentSnapshot) => {
    id: string;
    path: string;
    data: unknown;
};
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