| BertCluAnnotator | API for BERT-based Conversational Language Understanding. |
| BertCluAnnotator.BertCluAnnotatorOptions | Options for setting up a BertCluAnnotator. |
| BertCluAnnotator.BertCluAnnotatorOptions.Builder | Builder for BertCluAnnotator.BertCluAnnotatorOptions. |
| CluRequest | The input dialogue history for the BertCluAnnotator. |
| CluResponse | The output domain, intent, and slot information for the BertCluAnnotator. |
| CluResponse.CategoricalSlot | Represents a categorical slot whose values are within a finite set. |
| CluResponse.Mention | A single mention. |
| CluResponse.MentionedSlot | Represents a mentioned slot whose values are open text extracted from the input text. |