code: @Override
      public String context(@Nonnull Run<?, ?> run, @Nonnull TaskListener listener) {
          try {
              return new ExpandableMessage(context).expandAll(run, listener);
          } catch (Exception e) {
              LOG.debug("Can't expand context, returning as is", e);
              return context;
          }
      }
docs: Just returns what user entered. Expands env vars and token macro