code: def test_svd_dtype_preservation(chunks, dtype):
      x = (
          da.random.default_rng()
          .random((50, 50), chunks=chunks)
          .astype(dtype)
      )
      u, s, v = svd(x)
      assert u.dtype == s.dtype == v.dtype == dtype
  
imports: from __future__ import annotations
  import sys
  import pytest
  import numpy
  import scipy.linalg
  from packaging.version import parse
  import dask.array
  from dask.array.linalg import qr, sfqr, svd, svd_compressed, tsqr
  from dask.array.numpy_compat import _np_version
  from dask.array.utils import assert_eq, same_keys, svd_flip
label_desc: Use image node_id 11 for calling a global function with example usage: test_svd_dtype_preservation(chunks, dtype) without return types