# Copyright 2024 The etils Authors.
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# Licensed under the Apache License, Version 2.0 (the "License");
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#     http://www.apache.org/licenses/LICENSE-2.0
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"""`linalg` compat module for interoperability between tf, jax, numpy."""

from __future__ import annotations

from etils.enp import compat
from etils.enp import numpy_utils
from etils.enp.typing import FloatArray  # pylint: disable=g-multiple-import

lazy = numpy_utils.lazy


def normalize(x: FloatArray['*d'], axis: int = -1) -> FloatArray['*d']:
  """Normalize the vector to the unit norm."""
  return x / compat.norm(x, axis=axis, keepdims=True)