import { StructuredTool } from '@langchain/core/tools';
import type { z } from 'zod';
import { memoryUpdateSnapshotTool } from '../../prompts/memory_tools';
export declare class LivingMemoryUpdateSnapshotTool extends StructuredTool {
    private readonly lines;
    private readonly maxLines;
    private readonly saveSnapshot;
    name: string;
    description: string;
    schema: z.ZodObject<{
        operations: z.ZodArray<z.ZodDiscriminatedUnion<"type", [z.ZodObject<{
            type: z.ZodLiteral<"append">;
            text: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            type: "append";
            text: string;
        }, {
            type: "append";
            text: string;
        }>, z.ZodObject<{
            type: z.ZodLiteral<"replace">;
            line: z.ZodNumber;
            text: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            type: "replace";
            line: number;
            text: string;
        }, {
            type: "replace";
            line: number;
            text: string;
        }>, z.ZodObject<{
            type: z.ZodLiteral<"delete">;
            line: z.ZodNumber;
        }, "strip", z.ZodTypeAny, {
            type: "delete";
            line: number;
        }, {
            type: "delete";
            line: number;
        }>]>, "many">;
    }, "strip", z.ZodTypeAny, {
        operations: ({
            type: "append";
            text: string;
        } | {
            type: "replace";
            line: number;
            text: string;
        } | {
            type: "delete";
            line: number;
        })[];
    }, {
        operations: ({
            type: "append";
            text: string;
        } | {
            type: "replace";
            line: number;
            text: string;
        } | {
            type: "delete";
            line: number;
        })[];
    }>;
    constructor(lines: readonly string[], maxLines: number, saveSnapshot: (text: string) => Promise<void>);
    _call(input: z.infer<typeof memoryUpdateSnapshotTool.schema>): Promise<{
        lc_direct_tool_output: true;
        updated: boolean;
    }>;
}