import type { BaseMessage, BaseMessageChunk } from "@langchain/core/messages";
export type EvaluatorResult = {
    key: string;
    score: number | boolean;
    comment?: string;
    metadata?: Record<string, unknown>;
};
export type SimpleEvaluator = (params: {
    inputs?: unknown;
    outputs: unknown;
    reference_outputs?: unknown;
    [key: string]: unknown;
}) => Promise<EvaluatorResult | EvaluatorResult[]> | EvaluatorResult | EvaluatorResult[];
export type SingleResultScorerReturnType = boolean | number | [boolean | number, string, Record<string, unknown>?] | readonly [boolean | number, string, Record<string, unknown>?];
export type MultiResultScorerReturnType = {
    [key: string]: boolean | number | {
        score: boolean | number;
        reasoning?: string;
    };
};
export type ChatCompletionMessage = Record<string, any> & ({
    content: any;
    role: "user" | "system" | "developer";
    id?: string;
} | {
    role: "assistant";
    content: any;
    tool_calls?: any[];
    id?: string;
} | {
    role: "tool";
    content: any;
    tool_call_id: string;
    id?: string;
});
export type ChatCompletion = {
    choices: {
        message: ChatCompletionMessage;
    }[];
};
export type FewShotExample = {
    inputs: unknown;
    outputs: unknown;
    score: number | boolean;
    reasoning?: string;
};
export interface ChatCompletionsClient {
    create(params: Record<string, any>): Promise<ChatCompletion>;
}
export interface ModelChatClient {
    completions: ChatCompletionsClient;
}
export interface ModelClient {
    chat: ModelChatClient;
}
export type Messages = ChatCompletionMessage | BaseMessage | BaseMessageChunk;
export type MultiturnSimulationResult = {
    evaluatorResults: EvaluatorResult[];
    trajectory: ChatCompletionMessage[];
};