code: public static Config parseResourcesAnySyntax(ClassLoader loader, String resourceBasename,
              ConfigParseOptions options) {
          return ConfigImpl.parseResourcesAnySyntax(resourceBasename, options.setClassLoader(loader))
                  .toConfig();
      }
docs: Parses classpath resources with a flexible extension. In general, this
  method has the same behavior as
  {@link #parseFileAnySyntax(File,ConfigParseOptions)} but for classpath
  resources instead, as in
  {@link #parseResources(ClassLoader,String,ConfigParseOptions)}.
  
  <p>
  {@link #parseResourcesAnySyntax(Class,String,ConfigParseOptions)} differs
  in the syntax for the resource name, but otherwise see
  {@link #parseResourcesAnySyntax(Class,String,ConfigParseOptions)} for
  some details and caveats on this method.
  
  @param loader
  class loader to look up resources in, will be set on options
  @param resourceBasename
  a resource name as in
  {@link java.lang.ClassLoader#getResource}, with or without
  extension
  @param options
  parse options (class loader ignored)
  @return the parsed configuration