import { Timestamp } from "firebase/firestore";
export type BaseConstructorPayload = {
    /**
    * Object Id
    */
    id: string;
    creatorId: string;
    createdBy: string;
    createdAt: Timestamp;
    groupId: string;
};
export declare class Base {
    private _id;
    private _creatorId;
    private _createdBy;
    private _createdAt;
    private _groupId;
    constructor(payload: BaseConstructorPayload);
    get id(): string;
    get createdBy(): string;
    get createdAt(): Timestamp;
    get groupId(): string;
    get creatorId(): string;
    isValid(): boolean;
    protected objectOf(): {
        id: string;
        createdBy: string;
        createdAt: Timestamp;
        groupId: string;
        creatorId: string;
    };
}
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