| pn_atom_t | A descriminated union that holds any scalar AMQP value |
| pn_buf_t | A modifiable memory buffer |
| pn_bytes_t | |
| pn_cbuf_t | A read-only memory buffer |
| pn_class_t | |
| pn_connection_engine_t | A connection engine is a trio of pn_connection_t, pn_transport_t and pn_collector_t |
| pn_decimal128_t | |
| pn_token_t | |
| pn_uuid_t |
1.6.1
