code: public java.util.List<PolicyTypeDescription> getPolicyTypeDescriptions() {
          if (policyTypeDescriptions == null) {
              policyTypeDescriptions = new com.amazonaws.internal.SdkInternalList<PolicyTypeDescription>();
          }
          return policyTypeDescriptions;
      }
docs: <p>
  Information about the policy types.
  </p>
  
  @return Information about the policy types.