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constexpr const char *kErrorMessage =
    "The operation that uses the operand is on a different host than the "
    "operation that defines the op. This pass does not support cross-host data "
    "transfer yet";

// The host address is identified by the job/replicate/task in the device name.
std::string GetHost(llvm::StringRef device) {
  ParsedName parsed_name;
  DeviceNameUtils::ParseFullName(device.str(), &parsed_name);

func (r *Reader) AddNonTrailingChecksum(cs *Checksum, ignoreValue bool) error {
	if cs == nil {
		return nil
	}
	r.contentHash = *cs
	if ignoreValue {
		// Do not validate, but allow for transfer
		return nil
	}

	r.contentHasher = cs.Type.Hasher()
	if r.contentHasher == nil {
		return ErrInvalidChecksum
	}
	return nil
}

func (r *Reader) Read(p []byte) (int, error) {

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