Interfacegatewayv0.1.0-next.3SubscriptionsCustom subscribers defined by the application. Augment it via declaration merging to type your own subscriber payloads. interface Subscriptionsinterface SubscriptionsExamplesCopydeclare module '@seedcord/gateway' { interface Subscriptions { 'userJoin': { userId: string; guildId: string }; 'levelUp': { userId: string; level: number }; } }declare module '@seedcord/gateway' { interface Subscriptions { 'userJoin': { userId: string; guildId: string }; 'levelUp': { userId: string; level: number }; } }