export interface PreflightError {
    reasonForError: string;
    ok: false;
}
export interface PreflightSuccess {
    ok: true;
}
export type PreflightResult = PreflightError | PreflightSuccess;
export interface Utterance {
    role: 'customer' | 'bot';
    content: string;
}
export interface ChatCompletionClient {
    getProviderName(): string;
    predict(context: string, conversationUtterances: Utterance[]): Promise<Utterance | null>;
    preflightCheck(): Promise<PreflightResult>;
}