export declare class SubscriptionPlan {
    id: string;
    name: string;
    display_name: string;
    description: string;
    price_monthly: number;
    price_yearly: number;
    stripe_price_id_monthly: string;
    stripe_price_id_yearly: string;
    max_agents: number;
    max_conversations_per_month: number;
    max_knowledge_items: number;
    max_api_keys: number;
    trial_days: number;
    has_analytics: boolean;
    has_custom_branding: boolean;
    has_multi_language: boolean;
    has_priority_support: boolean;
    has_widget_customization: boolean;
    has_export: boolean;
    has_webhooks: boolean;
    has_api_access: boolean;
    is_active: boolean;
    sort_order: number;
    features_list: string[];
    created_at: Date;
    updated_at: Date;
}