Example Copy merge(['kaisti.txt', 'kaist2.txt', 'kaist3.txt elice_utils.send_file('output.txt') from time import sleep 1 2 3. 4 def.merge(input_filenames, output_filename): # Implement here #... pass 6 7 8 9 10 11 merge(['kaist1.txt', 'kaist2.txt', 'kaist3.txt'], 'output.txt')- sleep(0.5) # Wait 0.5 seconds before creating a download link. - elice_utils.send_file('output.txt')-