import { DbService } from "../db/db.service";
export declare class CommonService {
    private readonly dbService;
    constructor(dbService: DbService);
    checkToken(token: string): Promise<(import("mongoose").Document<unknown, {}, import("mongoose").Document<unknown, {}, import("../auth/schemas/session.schema").Sessions, {}, import("mongoose").DefaultSchemaOptions> & import("../auth/schemas/session.schema").Sessions & Required<{
        _id: string;
    }> & {
        __v: number;
    } & {
        id: string;
    }, {}, import("mongoose").DefaultSchemaOptions> & import("mongoose").Document<unknown, {}, import("../auth/schemas/session.schema").Sessions, {}, import("mongoose").DefaultSchemaOptions> & import("../auth/schemas/session.schema").Sessions & Required<{
        _id: string;
    }> & {
        __v: number;
    } & {
        id: string;
    }) | null>;
}