| AbstractHandshakeSerializer<T> | Convert a Handshake POJO to a JsonElement, taking into account that sometimes we get a resource_uri for an existing nested object instead of the full object to be created. |
| BigDecimalAsStringSerializer | Handshake API doesn't support Decimal values as parameters for POST methods, as they don't want to suffer from precision errors, they ask for Strings |
| HandshakeCustomerSerializer | |
| HandshakeItemSerializer | |
| HandshakeOrderSerializer |