code: public java.util.List<VpcCidrBlockAssociation> getCidrBlockAssociationSet() {
          if (cidrBlockAssociationSet == null) {
              cidrBlockAssociationSet = new com.amazonaws.internal.SdkInternalList<VpcCidrBlockAssociation>();
          }
          return cidrBlockAssociationSet;
      }
docs: <p>
  Information about the IPv4 CIDR blocks associated with the VPC.
  </p>
  
  @return Information about the IPv4 CIDR blocks associated with the VPC.