import { StructuredTool, ToolParams } from '@langchain/core/tools';
import { z } from 'zod';
import { IStateManager } from '../state/state-types';
import { HCS10Client } from '../hcs10/HCS10Client';
type ListPendingRequestsToolParams = ToolParams & {
    hcsClient: HCS10Client;
    stateManager: IStateManager;
};
export declare class ListUnapprovedConnectionRequestsTool extends StructuredTool {
    name: string;
    description: string;
    schema: z.ZodObject<{
        sortBy: z.ZodOptional<z.ZodEnum<["time_asc", "time_desc", "name_asc", "name_desc"]>>;
        limit: z.ZodOptional<z.ZodNumber>;
    }, "strip", z.ZodTypeAny, {
        sortBy?: "time_asc" | "time_desc" | "name_asc" | "name_desc" | undefined;
        limit?: number | undefined;
    }, {
        sortBy?: "time_asc" | "time_desc" | "name_asc" | "name_desc" | undefined;
        limit?: number | undefined;
    }>;
    private hcsClient;
    private stateManager;
    private logger;
    constructor({ hcsClient, stateManager, ...rest }: ListPendingRequestsToolParams);
    protected _call({ sortBy, limit, }: z.infer<this['schema']>): Promise<string>;
    /**
     * Processes the connection connectionMap to find all requests
     * that are not fully established (incoming unapproved and outgoing pending).
     */
    private findAllPendingRequests;
    /**
     * Formats the list of pending requests for display.
     */
    private formatRequestsList;
    /**
     * Sorts connection requests based on the specified criteria.
     */
    private sortRequests;
}
export {};