import { InputValues, MemoryVariables, OutputValues } from "./base.js";
import { BaseConversationSummaryMemory, BaseConversationSummaryMemoryInput } from "./summary.js";
export interface ConversationSummaryBufferMemoryInput extends BaseConversationSummaryMemoryInput {
    maxTokenLimit?: number;
}
export declare class ConversationSummaryBufferMemory extends BaseConversationSummaryMemory implements ConversationSummaryBufferMemoryInput {
    movingSummaryBuffer: string;
    maxTokenLimit: number;
    constructor(fields: ConversationSummaryBufferMemoryInput);
    get memoryKeys(): string[];
    loadMemoryVariables(_: InputValues): Promise<MemoryVariables>;
    saveContext(inputValues: InputValues, outputValues: OutputValues): Promise<void>;
    prune(): Promise<void>;
    clear(): Promise<void>;
}