import { Action } from "../../core/pipeline/Action.js";
import { ActionOptionsType } from "../../types/ActionOptionsType.js";
/**
 * StyleProcessingAction is a step action responsible for processing styles,
 * including compiling SCSS and applying PostCSS transformations. It supports
 * expanded and compressed output styles based on the provided configuration.
 */
export declare class StyleProcessingAction extends Action {
    /**
     * Executes the style processing action.
     * @param options - The options specific to style processing, including
     * input/output file paths and style format.
     * @returns A Promise that resolves when the styles are processed
     * successfully, or rejects with an error if the action fails.
     */
    execute(options: ActionOptionsType): Promise<void>;
    /**
     * Processes the given CSS with PostCSS based on the provided style option.
     * @param css - The CSS string to process.
     * @param styleOption - The style option, either "expanded" or "compressed".
     * @returns Processed CSS string.
     */
    private processPostCSS;
    /**
     * Ensures that the given directory exists, creating it if it does not.
     * @param dirPath - The path of the directory to check and create.
     */
    private ensureDirectoryExists;
    /**
     * Provides a description of the action.
     * @returns A string description of the action.
     */
    describe(): string;
}