import { RenderOptions } from '../types';
import { ITemplateEngine } from './engines/base';
/**
 * Rendering service for templates
 * Responsible for rendering templates with variables
 */
export declare class PromptRenderer {
    /**
     * Render a template with variables
     */
    render(engine: ITemplateEngine, template: string, variables: Record<string, unknown>, options?: RenderOptions): string;
    /**
     * Safe render that returns errors instead of throwing
     */
    safeRender(engine: ITemplateEngine, template: string, variables: Record<string, unknown>, options?: RenderOptions): {
        success: boolean;
        result?: string;
        error?: string;
    };
    /**
     * Validate template syntax
     */
    validateTemplate(engine: ITemplateEngine, template: string): {
        valid: boolean;
        error?: string;
    };
    /**
     * Extract variables from template
     */
    extractVariables(engine: ITemplateEngine, template: string): string[];
}
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