import { HttpService } from '@nestjs/axios';
import { OAIEngineExtension } from '../domain/abstracts/oai.abstract';
import { ConfigsUsecases } from '@/usecases/configs/configs.usecase';
import { EventEmitter2 } from '@nestjs/event-emitter';
declare enum RoleType {
    user = "USER",
    chatbot = "CHATBOT",
    system = "SYSTEM"
}
type CoherePayloadType = {
    chat_history?: Array<{
        role: RoleType;
        message: string;
    }>;
    message?: string;
    preamble?: string;
};
export default class CoHereEngineExtension extends OAIEngineExtension {
    protected readonly httpService: HttpService;
    protected readonly configsUsecases: ConfigsUsecases;
    protected readonly eventEmmitter: EventEmitter2;
    apiUrl: string;
    name: string;
    productName: string;
    description: string;
    version: string;
    apiKey?: string;
    constructor(httpService: HttpService, configsUsecases: ConfigsUsecases, eventEmmitter: EventEmitter2);
    onLoad(): Promise<void>;
    transformPayload: (payload: any) => CoherePayloadType;
    transformResponse: (data: any, stream: boolean) => string | {
        choices: {
            message: {
                content: any;
            };
        }[];
    };
}
export {};