import { BaseChatModel } from '@langchain/core/language_models/chat_models';
import type { BaseMessage } from '@langchain/core/messages';
import type { CallbackManagerForLLMRun } from '@langchain/core/callbacks/manager';
import type { ChatResult } from '@langchain/core/outputs';
import type { AzureOpenAiChatCallOptions, AzureOpenAiChatModelParams } from './types.js';
import type { HttpDestinationOrFetchOptions } from '@sap-cloud-sdk/connectivity';
/**
 * LangChain chat client for Azure OpenAI consumption on SAP BTP.
 */
export declare class AzureOpenAiChatClient extends BaseChatModel<AzureOpenAiChatCallOptions> {
    temperature?: number | null;
    top_p?: number | null;
    logit_bias?: Record<string, any> | null | undefined;
    user?: string;
    presence_penalty?: number;
    frequency_penalty?: number;
    stop?: string | string[];
    max_tokens?: number;
    private openAiChatClient;
    constructor(fields: AzureOpenAiChatModelParams, destination?: HttpDestinationOrFetchOptions);
    _llmType(): string;
    _generate(messages: BaseMessage[], options: typeof this.ParsedCallOptions, runManager?: CallbackManagerForLLMRun): Promise<ChatResult>;
}
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