/**
 * Quote a string value for use in RSQL filters using double quotes.
 * Escapes backslashes and embedded double quotes to prevent malformed queries.
 */
export declare function rsqlQuote(value: string): string;
/**
 * Quote a string value for use in RSQL filters using single quotes.
 * Escapes backslashes and embedded single quotes. A value without them stays byte-identical to plain quoting.
 */
export declare function rsqlSingleQuote(value: string): string;
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