/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import type * as types from './types';
type PromiseOrValue<T> = T | Promise<T>;
export type LoopEvents = {
    onBeforeTurn?: (params: {
        conversation: types.Conversation;
        totalUsage: types.Usage;
        budgetTokens?: number;
    }) => PromiseOrValue<void>;
    onAfterTurn?: (params: {
        assistantMessage: types.AssistantMessage;
        totalUsage: types.Usage;
        budgetTokens?: number;
    }) => PromiseOrValue<void>;
    onBeforeToolCall?: (params: {
        assistantMessage: types.AssistantMessage;
        toolCall: types.ToolCallContentPart;
    }) => PromiseOrValue<'disallow' | void>;
    onAfterToolCall?: (params: {
        assistantMessage: types.AssistantMessage;
        toolCall: types.ToolCallContentPart;
        result: types.ToolResult;
    }) => PromiseOrValue<'disallow' | void>;
    onToolCallError?: (params: {
        assistantMessage: types.AssistantMessage;
        toolCall: types.ToolCallContentPart;
        error: Error;
    }) => PromiseOrValue<void>;
};
export type LoopOptions = types.CompletionOptions & LoopEvents & {
    tools?: types.Tool[];
    callTool?: types.ToolCallback;
    maxTurns?: number;
    maxToolCalls?: number;
    maxToolCallRetries?: number;
    cache?: types.ReplayCache;
    cacheMode?: 'strict' | 'lax';
    secrets?: Record<string, string>;
    summarize?: boolean;
};
export declare class Loop {
    private _provider;
    private _loopOptions;
    private _cacheOutput;
    constructor(options: LoopOptions);
    run(task: string, runOptions?: Omit<LoopOptions, 'model' | 'api' | 'apiKey'> & {
        model?: string;
    }): Promise<{
        result?: types.ToolResult;
        status: 'ok' | 'break' | 'error';
        error?: string;
        usage: types.Usage;
        turns: number;
    }>;
    private _summarizeConversation;
    cache(): types.ReplayCache;
}
export {};