public void addCompletions(CompletionParameters parameters, //completion parameters contain details of the cursor position
                                              ProcessingContext context,
                                              CompletionResultSet resultSet) { // result set contains completion details to suggest
                       resultSet.addElement(LookupElementBuilder.create(""));
                   }
This class is used for the extension (in plugin.xml) to enables Auto-Complete. Partially works for now.

@author Shahar Ariel
integration/intellij/src/main/java/ai/vespa/intellij/schema/SdCompletionContributor.java