```
def average(numbers):
total = sum(numbers)
total = float(total)/ len(numbers)
return total
def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(student["tests"])
return 0.1 * homework+ 0.3 * quizzes + 0.6 *tests
def get_letter_grade(score):
if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >= 70:
return "C"
elif score >= 60:
return "D"
else:
return "F"
print get_letter_grade(get_average(lloyd))
def get_class_average(students):
```

error : File "python", line 43

def get_class_average(students):

^

IndentationError: expected an indented block. How do i solve it.