code: public java.util.List<PhysicalResourceIdContextKeyValuePair> getPhysicalResourceIdContext() {
          if (physicalResourceIdContext == null) {
              physicalResourceIdContext = new com.amazonaws.internal.SdkInternalList<PhysicalResourceIdContextKeyValuePair>();
          }
          return physicalResourceIdContext;
      }
docs: <p>
  Context information that enables AWS CloudFormation to uniquely identify a resource. AWS CloudFormation uses
  context key-value pairs in cases where a resource's logical and physical IDs are not enough to uniquely identify
  that resource. Each context key-value pair specifies a unique resource that contains the targeted resource.
  </p>
  
  @return Context information that enables AWS CloudFormation to uniquely identify a resource. AWS CloudFormation
  uses context key-value pairs in cases where a resource's logical and physical IDs are not enough to
  uniquely identify that resource. Each context key-value pair specifies a unique resource that contains
  the targeted resource.