code: @Override
      public void putAll(Map<? extends String, ? extends Object> t) {
          context.getBindings(ENGINE_SCOPE).putAll(t);
      }
docs: Put the bindings into the ENGINE_SCOPE of the context.
  
  @param t Mappings to be stored in this map.
  @throws UnsupportedOperationException if the <tt>putAll</tt> method is not
  supported by this map.
  @throws ClassCastException           if the class of a key or value in the specified
  map prevents it from being stored in this map.
  @throws IllegalArgumentException   some aspect of a key or value in the
  specified map prevents it from being stored in this map.
  @throws NullPointerException       if the specified map is <tt>null</tt>, or if
  this map does not permit <tt>null</tt> keys or values, and the specified map
  contains <tt>null</tt> keys or values.