void writeContent(int fileId,
                    @NotNull ByteArraySequence content,
                    boolean fixedSizeHint) throws IOException {
    PersistentFSConnection.ensureIdIsValid(fileId);
    PersistentFSRecordsStorage records = connection.getRecords();

    int contentRecordId = writeContentRecord(content);

    records.setContentRecordId(fileId, contentRecordId);
  }
void writeContent(int fileId,
                    @NotNull ByteArraySequence content,
                    boolean fixedSizeHint)