public @This @NonNull Builder<C, T> defaultValue(final @Nullable DefaultValue<? super C, T> defaultValue) {
            this.defaultValue = (DefaultValue<C, ?>) defaultValue;
            return this;
        }
Sets the {@code defaultValue}.

<p>This should not be set if {@code required} is {@code true}.</p>

@param defaultValue the default value
@return {@code this}
cloud-core/src/main/java/org/incendo/cloud/component/CommandComponent.java