Consider the following program: def process_string(a_string): total = 0 number_count = 0 for character in a_string: if character.isdigit(): total += int(character) number_count += 1 if number_count == 0: return 0.0 else: return round (total / number_count, 2) def main() : print (process_string("123ab4d, !@#cgh.5")) main() In the answer box below, write a docstring with a short description (20 words or less) of what the program does. IMPORTANT: There is no "Check" button for this question as it is manually marked. You can change your answer as many times as you like