This function sends a GET request to the staff endpoint of the Semestry API and retrieves the staff data.
get_staff(semestry, timeout = 30)
An authenticated Semestry object.
The timeout duration for the GET request (default: 30 seconds).
The retrieved staff data from the API.
if (FALSE) {
semestry <- authenticate_semestry()
get_staff(semestry)
}