/**
 * Runs an async action with a spinner, logging success or failure.
 * Allows for a custom success message generated from the action's result.
 * @param text - The initial text to display next to the spinner.
 * @param action - The async function to execute.
 * @param getSuccessText - Optional function to generate success text from the result.
 * @returns The result of the action.
 */
export declare function runStep<T>(text: string, action: () => Promise<T>, getSuccessText?: (result: T) => string): Promise<T>;