Interface Practicum

interface Practicum {
    created_at: Date;
    description: string;
    email: null | string;
    end_date: Date;
    first_name: null | string;
    last_name: null | string;
    name: string;
    required_hours: number;
    start_date: Date;
    userid: number;
    work_log_practicum_id: number;
    [column: string]: any;
    [column: number]: any;
}