/**
 * This function takes the first name and last name of an actor/actress and returns their full name.
 *
 * @param firstName The first name of the actor/actress.
 * @param lastName The last name of the actor/actress.
 * @return The full name of the actor/actress.
 */
fun createFullName(firstName: String?, lastName: String?): String? {

    if (firstName == null || lastName == null) {
        return null
    } else {
        return "$firstName $lastName"
    }
}
/**
 * This function takes the first name and last name of an actor/actress and returns their full name.
 *
 * @param firstName The first name of the actor/actress.
 * @param lastName The last name of the actor/actress.
 * @return The full name of the actor/actress.
 */
fun createFullName(firstName: String?, lastName: String?): String? {
/**
 * This function takes the first name and last name of an actor/actress and returns their full name.
 *
 * @param firstName The first name of the actor/actress.
 * @param lastName The last name of the actor/actress.
 * @return The full name of the actor/actress.
 */
fun createFullName(firstName: String?, lastName: String?): String? {

    if (firstName == null || lastName == null) {
        return null
    } else {
        return "$firstName $lastName"
    }
}