}

func verifyLegacy(pub *PublicKey, hash []byte, sig []byte) bool {
	rBytes, sBytes, err := parseSignature(sig)
	if err != nil {
		return false
	}
	r, s := new(big.Int).SetBytes(rBytes), new(big.Int).SetBytes(sBytes)

	c := pub.Curve
	N := c.Params().N

	if r.Sign() <= 0 || s.Sign() <= 0 {
		return false
	}
	if r.Cmp(N) >= 0 || s.Cmp(N) >= 0 {
		return false
	}

		return errors.New("Rat.GobDecode: invalid length")
	}
	i := j + int(ln)
	if len(buf) < i {
		return errors.New("Rat.GobDecode: buffer too small")
	}
	z.a.neg = b&1 != 0
	z.a.abs = z.a.abs.setBytes(buf[j:i])
	z.b.abs = z.b.abs.setBytes(buf[i:])
	return nil
}

// MarshalText implements the [encoding.TextMarshaler] interface.
func (x *Rat) MarshalText() (text []byte, err error) {
	if x.IsInt() {
		return x.a.MarshalText()
	}

	}
	if boring.Enabled {
		bk, err := boring.NewPublicKeyECDH(c.name, k.publicKey)
		if err != nil {
			return nil, err
		}
		k.boring = bk
	} else {
		// SetBytes also checks that the point is on the curve.
		if _, err := c.newPoint().SetBytes(key); err != nil {
			return nil, err
		}
	}
	return k, nil
}

func (c *nistCurve[Point]) ecdh(local *PrivateKey, remote *PublicKey) ([]byte, error) {

          mlir::TF::ResourceType::get(
              /*subtypes=*/{mlir::cast<TensorType>(global_tensor.getType())},
              module.getContext()));

      arg.setType(new_arg_type);
    }

    // Update the function type.
    func.setType(mlir::FunctionType::get(module.getContext(),
                                         func.getBody().getArgumentTypes(),

    }

    private static TransferEvent event(
            RepositorySystemSession session, TransferResource resource, TransferEvent.EventType type) {
        return new TransferEvent.Builder(session, resource).setType(type).build();
    }

	if z.form == finite {
		if len(buf) < 10 {
			return errors.New("Float.GobDecode: buffer too small for finite form float")
		}
		z.exp = int32(byteorder.BeUint32(buf[6:]))
		z.mant = z.mant.setBytes(buf[10:])
	}

	if oldPrec != 0 {
		z.mode = oldMode
		z.SetPrec(uint(oldPrec))
	}

	if msg := z.validate0(); msg != "" {
		return errors.New("Float.GobDecode: " + msg)
	}

	return nil

          block.getArgument(it.first->getValue()));
      op.erase();
    }
  }
  if (lifted_op_and_arg_idx.empty()) return success();

  // Update the function signature as well as its uses.
  target_func.setType(FunctionType::get(target_func.getContext(),
                                        block.getArgumentTypes(),
                                        func_type.getResults()));

  IRMapping mapping;