import type { FieldPath, WhereFilterOp } from '@lemasc/firebase-wrapper/firestore';
import { TypedQueryConstraint } from '../types/Collection';
/**
 * Creates a {QueryConstraint} that enforces that documents must contain the
 * specified field and that the value should satisfy the relation constraint
 * provided.
 *
 * @param fieldPath - The path to compare
 * @param opStr - The operation string (e.g "&lt;", "&lt;=", "==", "&lt;",
 *   "&lt;=", "!=").
 * @param value - The value for comparison
 * @returns The created {Query}.
 */
export declare function where<Doc extends Record<string, any>>(fieldPath: keyof Doc | FieldPath, opStr: WhereFilterOp, value: unknown): TypedQueryConstraint<Doc>;