private static void considerField(List<ImportedField> importedFields, ImportedField field) {
        if (field instanceof ImportedComplexField) {
            considerComplexField(importedFields, (ImportedComplexField) field);
        } else {
            considerSimpleField(importedFields, field);
        }
    }
This class derives imported fields from search definition and produces imported-fields.cfg as needed by the search backend.

@author geirst
config-model/src/main/java/com/yahoo/schema/derived/ImportedFields.java