code: public java.util.List<PublicKey> getPublicKeyList() {
          if (publicKeyList == null) {
              publicKeyList = new com.amazonaws.internal.SdkInternalList<PublicKey>();
          }
          return publicKeyList;
      }
docs: <p>
  Contains an array of PublicKey objects.
  </p>
  <note>
  <p>
  The returned public keys may have validity time ranges that overlap.
  </p>
  </note>
  
  @return Contains an array of PublicKey objects.</p> <note>
  <p>
  The returned public keys may have validity time ranges that overlap.
  </p>