scStr := string(b)
	if scStr == "" {
		return nil
	}
	s, err := parseStorageClass(scStr)
	if err != nil {
		return err
	}
	sc.Parity = s.Parity
	return nil
}

// MarshalText - marshals storage class string.
func (sc *StorageClass) MarshalText() ([]byte, error) {
	if sc.Parity != 0 {
		return fmt.Appendf(nil, "%s:%d", schemePrefix, sc.Parity), nil
	}
	return []byte{}, nil
}

      /*
       * standardToArray returns `@Nullable Object[]` rather than `Object[]` but because it can
       * be used with collections that may contain null. This collection never contains nulls, so we
       * could return `Object[]`. But this class is private and J2KT cannot change return types in
       * overrides, so we declare `@Nullable Object[]` as the return type.
       */
      return standardToArray();
    }

      self.setCount(element, newCount);
      return true;
    } else {
      return false;
    }
  }

  static <E extends @Nullable Object> Iterator<E> elementIterator(
      Iterator<Entry<E>> entryIterator) {
    return new TransformedIterator<Entry<E>, E>(entryIterator) {
      @Override
      @ParametricNullness
      E transform(Entry<E> entry) {
        return entry.getElement();
      }
    };
  }

			return getPolicies()
		})
		if err != nil {
			return nil, err
		}
		res, ok := val.([]string)
		if !ok {
			return nil, errors.New("unexpected policy type")
		}
		return res, nil
	}
	return getPolicies()
}

// AddUsersToGroup - adds users to group, creating the group if needed.

        return set2.containsAll(set1);
      }

      @Override
      public boolean contains(@Nullable Object element) {
        return set1.contains(element) && !set2.contains(element);
      }

      @Override
      int minSize() {
        return max(minSize(set1) - maxSize(set2), 0);
      }

      @Override
      int maxSize() {
        return maxSize(set1);
      }

		return e.Operand.aggregateRow(r, tableAlias)
	}
	return e.Not.aggregateRow(r, tableAlias)
}

func (e *ConditionOperand) aggregateRow(r Record, tableAlias string) error {
	err := e.Operand.aggregateRow(r, tableAlias)
	if err != nil {
		return err
	}

	if e.ConditionRHS == nil {
		return nil
	}

	switch {
	case e.ConditionRHS.Compare != nil:

	if err != nil {
		return err
	}
	return conn.Ping()
}

type PreparedStmtTX struct {
	Tx
	PreparedStmtDB *PreparedStmtDB
}

func (db *PreparedStmtTX) GetDBConn() (*sql.DB, error) {
	return db.PreparedStmtDB.GetDBConn()
}

func (tx *PreparedStmtTX) Commit() error {
	if tx.Tx != nil && !reflect.ValueOf(tx.Tx).IsNil() {
		return tx.Tx.Commit()
	}
	return ErrInvalidTransaction
}

	if err != nil {
		return 0, err
	}
	_, err = b.Hash.Write(p)
	if err != nil {
		return 0, err
	}
	return len(p), nil
}

func (b *wholeBitrotWriter) Close() error {
	return nil
}

// Returns whole-file bitrot writer.
func newWholeBitrotWriter(disk StorageAPI, volume, filePath string, algo BitrotAlgorithm, shardSize int64) io.WriteCloser {

        return result;
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        @SuppressWarnings("unchecked")

			return retentionCfg.Mode, objectlock.RetentionDate{Time: t.Add(retentionCfg.Validity)}, legalHold, ErrNone
		}
		return "", objectlock.RetentionDate{}, legalHold, ErrNone
	}
	return mode, retainDate, legalHold, ErrNone
}

// NewBucketObjectLockSys returns initialized BucketObjectLockSys
func NewBucketObjectLockSys() *BucketObjectLockSys {
	return &BucketObjectLockSys{}