import { Model, ModelResponse, ModelResult, StreamingModel } from '../../model/model-protocol';
import { AssistantMessage } from '../message';
import { ChatGenerationMetadata, ChatResponseMetadata } from '../metadata';
import { Prompt } from '../prompt/prompt-protocol';
export declare const StreamingChatModel: unique symbol;
export declare const ChatModel: unique symbol;
/**
 * Represents a response returned by the AI.
 */
export interface Generation extends ModelResult<AssistantMessage> {
    metadata: ChatGenerationMetadata;
}
export interface ChatResponse extends ModelResponse<Generation> {
    metadata: ChatResponseMetadata;
}
export declare namespace Generation {
    function from(output: AssistantMessage, metadata?: ChatGenerationMetadata): Generation;
}
export declare namespace ChatResponse {
    function from(results: Generation[], metadata?: ChatResponseMetadata): ChatResponse;
    function isToolCall(chatResponse: ChatResponse, toolCallFinishReasons: Set<string>): boolean;
}
export interface StreamingChatModel extends StreamingModel<Prompt, ChatResponse> {
}
export interface ChatModel extends Model<Prompt, ChatResponse>, StreamingChatModel {
}
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