/**
 * Attempts to parse a JSON string or find the last valid JSON object/array within a string.
 * First tries to parse the entire string as JSON. If that fails, it searches for the last
 * valid JSON object or array in the string by tracking opening and closing braces/brackets.
 *
 * @param str - The input string that may contain JSON
 * @returns {object | number | string | undefined} The parsed JSON object/array, or undefined if no valid JSON is found
 *
 * @example // Returns parsed JSON if entire string is valid JSON
 * safelyParseLastJsonFromString('"value"') // returns "value"
 *
 * @example // Returns last valid JSON object in string with other content
 * safelyParseLastJsonFromString('some text {"key": "value"}') // returns {key: "value"}
 *
 * @example // Returns undefined if no valid JSON is found
 * safelyParseLastJsonFromString('invalid json') // returns undefined
 */
export declare function safelyParseLastJsonFromString(str: string): object | number | string | undefined;
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