@SuppressWarnings("unchecked")
    public T setIndentText(String indentText) {
        currentState.indent(0, indentText);
        return (T) this;
    }
Sets the text used for indentation (defaults to four spaces).

@param indentText Indentation text.
@return Returns self.
smithy-utils/src/main/java/software/amazon/smithy/utils/AbstractCodeWriter.java