=item B<serializer>
-This is a CORE reference that implements the serialization logic.
+This is a CODE reference that implements the serialization logic.
The CODE ref gets two arguments, the C<$value>, which is a HASH
reference to be serialized, and the C<$file_path> to save it to.
It is not expected to return anything.
=item B<deserializer>
-This is a CORE reference that implements the deserialization logic.
+This is a CODE reference that implements the deserialization logic.
The CODE ref gets one argument, the C<$file_path> to load the data
from. It is expected to return a HASH reference.