code: public String compile(final Collection<?> objs, final String template) {
          final InputStream templateStream = this.getClass().getResourceAsStream(template);
          return compile(objs, templateStream);
      }
docs: Compile templates, substituting from a collection of maps or objects
  into the given template.
  
  @param objs     the collection of maps or objects
  @param template the template resource pathname
  @return the expanded rules as a string