code: public JBBPDslBuilder Struct(final String name) {
      final Item item = new Item(BinType.STRUCT, name, this.byteOrder);
      this.addItem(item);
      this.openedStructCounter++;
      return this;
    }
docs: Create new named struct.
  
  @param name name of structure, it can be null for anonymous one
  @return the builder instance, must not be null