/**
 * @license
 * Copyright 2026 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { Content, GenerateContentConfig, GoogleGenAI, Interactions, Part } from '@google/genai';
import { LlmRequest } from './llm_request.js';
import { LlmResponse } from './llm_response.js';
export interface ExtendedInteraction extends Interactions.Interaction {
    error?: {
        code: string;
        message: string;
    };
}
export interface ExtendedInteractionStatusUpdate extends Omit<Interactions.InteractionStatusUpdate, 'error'> {
    error?: {
        code: string;
        message: string;
    };
}
export interface ExtendedFunctionCallStep extends Interactions.FunctionCallStep {
    signature?: string;
}
export interface ExtendedInteractionSSEEvent extends Omit<Interactions.InteractionSSEEvent, 'error' | 'interaction_id' | 'status' | 'event_type'> {
    event_type?: string;
    eventType?: string;
    delta?: {
        type: string;
        text?: string;
        name?: string;
        id?: string;
        arguments?: Record<string, unknown>;
        thought_signature?: string;
        signature?: string;
        data?: string;
        uri?: string;
        mime_type: string;
    };
    status?: string;
    error?: {
        code: string;
        message: string;
    };
    code?: string;
    message?: string;
    interaction_id?: string;
    interactionId?: string;
    interaction?: {
        id: string;
    };
    id?: string;
}
/**
 * Extracts the latest turn contents for interactions API.
 */
export declare function getLatestUserContents(contents: Content[]): Content[];
/**
 * Convert a Content to a list of Steps.
 */
export declare function convertContentToSteps(content: Content): Interactions.Step[];
/**
 * Convert a Step to a list of Parts.
 */
export declare function convertStepToParts(step: Interactions.Step): Part[];
/**
 * Convert tools config to interactions format.
 */
export declare function convertToolsConfigToInteractionsFormat(config: GenerateContentConfig): Interactions.Tool[];
/**
 * Extract the latest model generated parts from a list of steps.
 */
export declare function getLatestModelParts(steps: Interactions.Step[]): Part[];
/**
 * Convert Interaction response to an LlmResponse.
 */
export declare function convertInteractionToLlmResponse(interaction: ExtendedInteraction): LlmResponse;
/**
 * Convert InteractionSSEEvent to LlmResponse.
 */
export declare function convertInteractionEventToLlmResponse(event: ExtendedInteractionSSEEvent, aggregatedParts: Part[], interactionId?: string): LlmResponse | null;
/**
 * Build generation config.
 */
export declare function buildGenerationConfig(config: GenerateContentConfig): Record<string, unknown>;
/**
 * Extract system instruction.
 */
export declare function extractSystemInstruction(config: GenerateContentConfig): string | undefined;
/**
 * Generate content using the interactions API.
 */
export declare function generateContentViaInteractions(apiClient: GoogleGenAI, llmRequest: LlmRequest, stream: boolean): AsyncGenerator<LlmResponse, void, void>;