code: public Datatype.Builder setType(TypeClass type) {
      this.type = Objects.requireNonNull(type);
      _unsetProperties.remove(Property.TYPE);
      return (Datatype.Builder) this;
    }
docs: Sets the value to be returned by {@link Datatype#getType()}.
  
  @return this {@code Builder} object
  @throws NullPointerException if {@code type} is null