### Code Design

* Model is based on Objects and not primitives that allows nullify requests and have null values for data

that wasn't provided by docker daemon.

* For null safeness findbugs annotations are used.

** Every method that may return `null` (and we are unsure in any fields as docker daemon may change something)

should be annotated with `@CheckForNull` return qualifier from `javax.annotation` package.

** Methods that can't return `null` must be annotated with `@Nonnull`.

** The same for Arguments.

** `@Nullable` must be used only for changing inherited (other typed) qualifier.

* Setters in builder style must be prefixed with `withXX`.

* All classes should provide `toString()` `equals()` and `hashCode()` defined methods.

* Javadocs

** Provide full information on field:

*** For models define API version with `@since {@link RemoteApiVersion#VERSION_1_X}`.