anchor.diff:  `config.get(ColumnMappers.class)`, we get back a `ColumnMappers` instance with
   the current column mapper configuration.
   
  -Next we call `ColumnMappers.findFor()` to get the column mappers for the left
  -and right type parameters.
  +Next we call `ColumnMappers.findFor()` to get the column mapper for the embedded
  +type.
   
   [TIP]
   You may have noticed that although this method can return `Optional`, we're
  
positive.code: }
  ----
  
  The link:{jdbidocs}/core/generic/GenericTypes.html[GenericTypes^] utility class
  provides several methods for helping to interpret Java generic types.
  
  The method `GenericTypes.getErasedType` accepts a `java.lang.reflect.Type` and
  returns the raw `java.lang.Class` for that type. So if `type` were the generic
  type `Pair<Foo,Bar>`, it would return `Pair.class`.
  
  Next, we extract the `L` and `R` generic parameters from the mapped type:
  
  
negative.code: }
  ----
  
  [TIP]
  The `GenericType` utility class is discussed in <<Working with Generic Types>>.
  
  ==== Reflection Mappers
  
  