`python
def average(numbers):
    return sum(numbers) / len(numbers)
`
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Write a Python function to calculate the average of a list of numbers.

### Input:


### Response:
`python
def average(numbers):
    return sum(numbers) / len(numbers)
`<|im_end|>