import type { WhereQueryOperator } from "./types/index.js";
/**
 * Type-guard function for `WhereQueryOperator`.
 *
 * @param str The string to check.
 * @returns A boolean indicating whether the provided `str` is a valid `WhereQueryOperator`.
 */
export declare const isValidWhereQueryOperator: (str: string) => str is WhereQueryOperator;
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