docs: public ContentAssistEntry createSnippet(final String proposal, final String label, final ContentAssistContext context) {
      final Procedure1<ContentAssistEntry> _function = (ContentAssistEntry it) -> {
        it.setLabel(label);
      };
      return this.createProposal(proposal, context.getPrefix(), context, ContentAssistEntry.KIND_SNIPPET, _function);
    }