code: public void performCopying(File binDir, Map<String,Transformer> suffixRules) {
          Map<String,Transformer> sr = new HashMap<>();
          for (Map.Entry<String,Transformer> e : suffixRules.entrySet()) {
              if (e.getValue().getClass().equals(CopyFile.class)) {
                  sr.put(e.getKey(), e.getValue());
              }
          }
          perform(null, binDir, sr);
      }
docs: Run the copy translator only.