/**
 * hazo_llm_prompt_chain Function
 *
 * Executes a sequence of LLM calls where each call can reference
 * values from previous call results. Supports all 4 service types:
 * text_text, image_text, text_image, image_image.
 */
import type { PromptChainParams, PromptChainResponse, LLMApiConfig } from './types.js';
import type { HazoConnect } from '../hazo_connect/types.js';
/**
 * Execute a chain of prompt calls with dynamic value resolution
 *
 * @param params - Chain parameters including call definitions
 * @param hazo_connect - HazoConnect instance for database access
 * @param config - LLM API configuration
 * @param llm - Optional LLM provider name
 * @returns Chain response with merged results and individual call outcomes
 */
export declare function hazo_llm_prompt_chain(params: PromptChainParams, hazo_connect: HazoConnect, config: LLMApiConfig, llm?: string): Promise<PromptChainResponse>;
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