type ExtractPlaceholders<T extends string> = T extends `${infer _Start}%%${infer Key}%%${infer Rest}` ? Key | ExtractPlaceholders<Rest> : never;
type TransformTemplateArgs<T extends string> = {
    [Key in ExtractPlaceholders<T>]: string;
};
/**
 * Replaces placeholders in the format %%key%% in a template string with values from the values object.
 * Uses generic type T to automatically infer placeholder keys from the template string to ensure type safety.
 *
 * @example
 * const str = "Hello %%name%%, you are %%age%% years old."
 * const result = transformTemplate(str, { name: "John", age: "20" })
 * // Result: "Hello John, you are 20 years old."
 */
export declare function transformTemplate<T extends string>(templateString: T, values: TransformTemplateArgs<T>): string;
export {};