Defines the {@code contains} relationship between virtual network topology entities. A {@code Contains} relationship
is defined when an entity fully owns, contains or manages another entity.
For example, a subnet is contained and managed in the scope of a VCN, therefore a VCN has a
{@code contains} relationship to a subnet.
Defines the {@code contains} relationship between virtual network topology entities. A {@code Contains} relationship is defined when an entity fully owns, contains or manages another entity. For example, a subnet is contained and managed in the scope of a VCN, therefore a VCN has a {@code contains} relationship to a subnet.