A map or message creation expression. Maps are constructed as {'key_name': 'value'}. Message construction is similar, but prefixed with a type name and composed of field ids: types.MyType{field_id: 'value'}.
| Name | Type | Description | Notes |
|---|---|---|---|
| messageName | String | The type name of the message to be created, empty when creating map literals. | [optional] |
| entries | List<Entry> | The entries in the creation expression. | [optional] |