# Retrieve an `Object` stored via `[]=` function
#
# Returns `null` if there's no serialized object corresponding to the given key
- # Make sure that the serialized object is `auto_serializable` or that it redefines
+ # Make sure that the serialized object is `serialize` or that it redefines
# the appropriate methods. Refer to `Serializable` documentation for further details
fun [](key: String): nullable Object
do