the custom transformer function.
an object with customized toSolrQL and astToSolrQL functions.
Encodes ast/walker to solr filter, it is using the custom transformers.
Encodes query to solr filter, it is using the custom transformers.
Optional
query: ComplexQueryExpressionOptional
options: ComplexQueryToSolrQLOptionsGenerated using TypeDoc
Allows overload of transformers used to create solr filter expressions. This allows customizing e.g. of $suggest operator.