/**
 * The **Theme Modifier** — applies a conversational change to the current theme,
 * touching only the variables the request implies and merging the validated
 * delta onto the existing theme so everything else is preserved.
 *
 * @packageDocumentation
 */
import type { GeneratedTheme, ThemeGenerationResult } from '../../types/theme-ai.types';
import { ThemeLlmClient } from './theme-llm-client';
import type { ThemePromptBuilder } from './theme-prompt-builder';
import type { ThemeValidator } from './theme-validator';
/** Applies incremental, natural-language edits to the current theme. */
export declare class ThemeModifier {
    private readonly client;
    private readonly prompts;
    private readonly validator;
    constructor(client: ThemeLlmClient, prompts: ThemePromptBuilder, validator: ThemeValidator);
    /** Modify `current` per `prompt`; only implied variables change. */
    modify(prompt: string, current: GeneratedTheme | null, signal?: AbortSignal): Promise<ThemeGenerationResult>;
}
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