Function on

on<TAttributes extends Record<string, unknown> = Record<string, unknown>>(
eventName: string,
handler: (payload: OnHookPayload<TAttributes>) => void,
): void
Register a handler to be invoked when a given event happens
Type Parameters
- TAttributes extends Record<string, unknown> = Record<string, unknown>
Parameters
- eventName: string
  The name of the event to subscribe
- handler: (payload: OnHookPayload<TAttributes>) => void
  Function called with the event payload
Returns void