Regarding Static method in webdyno reference (SAP Certification material )

Hi Experts,

Reference:SAP Webdynpro for ABAP SAP Material for Participant exercise 7.

In the exercise 7 - Binding Internal Tables to Context Nodes

I am using as per the exercise following code in METHOD 'flighttab_fill' of component controller

---

CALL METHOD cl_net310_flightmodel=>read_flights

EXPORTING

i_carrid = stru_flightinfo-carrid

i_connid = stru_flightinfo-connid

IMPORTING

e_flights = it_flighttab.

---

I have not created cl_net310_flightmodel in my exercise.It was not given in the exercise too.

While activation of the component i am getting error

The Type cl_net310_flightmodel=>read_flights is unknown.

Can you please advice if you know anything.

Thanks and Regards,

Viswanath