.FirstN(1000)
                                .Summarize(-1));
        new_output = print_op;
      }

      if (debugging_opts.check_output_numerics &&
          DataTypeIsFloating(new_output.type())) {
        ops::CheckNumerics check_numerics_op(
            s.WithOpName("check_output_", oidx)
                .WithDevice(new_node->requested_device())

namespace {

static Status SafeConj(AbstractContext* ctx, AbstractTensorHandle* const input,
                       AbstractTensorHandle** output, const char* name) {
  auto dtype = input->DataType();
  if (DataTypeIsFloating(BaseType(dtype)) ||
      DataTypeIsInteger(BaseType(dtype))) {
    return tensorflow::ops::Identity(ctx, input, output, name);
  } else if (!DataTypeIsComplex(BaseType(dtype)) &&