anchor.diff:  
   Optional. Defaults to `graph`. The key to prefix before all keys entered into Redis. Also used as the channel name prefix where graph changes are published too.
   
  -##### `keyNode`
  +##### `Settings.keyNode`
   
   ```haskell
   keyNode :: FormatPattern
  
positive.code: *Required*. An instance of link:https://github.com/luin/ioredis[ioredis].
  
  [[keynamespace]]
  ##### `keyNamespace`
  
  ```haskell
  keyNamespace :: String
  
negative.code: 
  Optional. The key pattern for a subscriber-position endpoint's index of publisher-position endpoints.
  
  ##### `Settings.keyData`
  
  ```haskell
  keyData :: FormatPattern
  