@Override
  public void serialize(@NotNull GrImportStatementStub stub, @NotNull StubOutputStream dataStream) throws IOException {
    GrStubUtils.writeNullableString(dataStream, stub.getFqn());
    GrStubUtils.writeNullableString(dataStream, stub.getAliasName());
    dataStream.writeByte(stub.getFlags());
  }
@Override
  public void serialize(@NotNull GrImportStatementStub stub, @NotNull StubOutputStream dataStream)