this.built_in_transformers.add(new StringToByteArrayTransformer());
this.built_in_transformers.add(new DoubleToBigDecimal());
this.built_in_transformers.add(new BigDecimalToDouble());
this.built_in_transformers.add(new StringToInteger());
this.built_in_transformers.add(new IntegerToString());
this.built_in_transformers.add(new PrimitiveIntToString());
return this;
}