public DocWriter openCodeTab(String title, String language) {
        return openTab(title).openCodeBlock(language);
    }
Writes any context needed to open a code block tab.

@param title The title text that is displayed on the tab itself.
@param language the language of the tab's code.
@return returns the writer.
smithy-docgen/src/main/java/software/amazon/smithy/docgen/writers/DocWriter.java