/**
 * @description Generates a reusable C++ utility for handling optional fields in JSON serialization
 *              and deserialization using the nlohmann::json library and boost::optional.
 * @param indent - Specifies the level of indentation for the generated code.
 * @param includeNulls - Specifies whether to include null values in the JSON serialization.
 * @param useBoost - Specifies whether to use boost::optional instead of std::optional.
 * @param namespace - Specifies the namespace to use for the generated code.
 * @returns
 */
export declare function getNlohmannOptionalHelper(indent: number, includeNulls: boolean, useBoost: boolean, namespace: string): string[];