PassthroughTransformer is a transformer that passes the criteria through without any transformation.

StrictTransformerMux is like [TransformerMux] but it returns an error if no transformer is found for a given property.

Transformer can transform [query.Filter] criteria into another [query.FilterExpression].

TransformerFunc is a function that implements the [Transformer] interface.

TransformerMux combines several [Transformer] instances into a single one.