Complete the functions as described below: - get_head(item_list) : returns the first item of the list received as the parameter. - get_tail(item_list) : returns the last item of the list received as the parameter. - You may assume that the list has at least one item. Partial solution \begin{tabular}{c|c} 1 & def get_head(item_list): \\ 2 & return item_list[0] \end{tabular}