declare module "@capacitor/core" { interface PluginRegistry { PusherBeams: PusherBeamsPlugin; } } export interface PusherBeamsPlugin { echo(options: { value: string; }): Promise<{ value: string; }>; addDeviceInterest(options: { interest: string; }): Promise<{ message: string; }>; setUserID(options: { beamsAuthURL: string; userID: string; headers: JSON; }): Promise<{ message: string; } | string>; }