The conversation between human and AI assistant.
[|Human|] Write code to create a function.
[|AI|] Here is an example of how to create a function in Python:

```python
def greet(name):
    '''This function takes in a name and returns a greeting'''
    return f"Hello {name}, nice to meet you!"

# Let's test the function
print(greet("John"))
```
The function above is called `greet` and takes in one parameter, `name`. When called, it returns a personalized greeting.
[|Human|] 
Write code to create a function.