code: def test_lsmr_output_shape():
      x = splin.lsmr(A=np.ones((10, 1)), b=np.zeros(10), x0=np.ones(1))[
          0
      ]
      assert_equal(x.shape, (1,))
  
imports: import pytest
  import numpy
  import scipy.sparse
  import scipy.sparse.linalg
  from numpy.testing import assert_allclose, assert_equal
label_desc: Use image node_id 7 for calling a global function with example usage: test_lsmr_output_shape() without return types