Function useCommandGroup

Returns {
    dispatch: (action: string, target: any, payload?: any) => CommandResult;
    query: (action: string, target: any, payload?: any) => CommandResult;
    emit: (event: string, data?: any) => void;
    register: (
        action: string,
        handler: Handler,
        opts?: RegisterOptions,
    ) => () => void;
    use: (plugin: Plugin) => () => void;
    on: (pattern: string, listener: Listener) => () => void;
    namespace: string;
    dispose: () => void;
}

• dispatch: (action: string, target: any, payload?: any) => CommandResult

• query: (action: string, target: any, payload?: any) => CommandResult

• emit: (event: string, data?: any) => void

• register: (action: string, handler: Handler, opts?: RegisterOptions) => () => void

• use: (plugin: Plugin) => () => void

• on: (pattern: string, listener: Listener) => () => void

• namespace: string

• dispose: () => void

// Cart feature
const cart = useCommandGroup('cart')
cart.register('add', handler)    // registers 'cartAdd'
cart.dispatch('add', product)    // dispatches 'cartAdd'
cart.on('*', listener)           // listens to 'cart*'

// Orders feature — completely isolated
const orders = useCommandGroup('orders')
orders.dispatch('cancel', { id }) // dispatches 'ordersCancel'
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