The message we are trying to convey here is: always use the same name for keys/variables for our library. If we use `username` on one method, we use it for all of them. Example:

```ruby
def whatever(options = {})
  api_request(username: options[:username])
end

def hello(options = {})
  api_request(user: options[:username])
end
```

Note how we send `user` in one method and `username` in the other, but out API methods ask for `username` for both.