code: def test_polymatrix_ones_zeros():
      assert PolyMatrix.zeros(1, 2, x) == PolyMatrix([[0, 0]], x)
      assert PolyMatrix.eye(2, x) == PolyMatrix([[1, 0], [0, 1]], x)
  
file_path: sympy/sympy/polys/tests/test_polymatrix.py
imports: from sympy.testing.pytest import raises
  from sympy.polys.polymatrix import PolyMatrix
  from sympy.polys import Poly
  from sympy.core.singleton import S
  from sympy.matrices.dense import Matrix
  from sympy.polys.domains.integerring import ZZ
  from sympy.polys.domains.rationalfield import QQ
  from sympy.abc import x, y
label_desc: Use image node_id 9 for calling a global function with example usage: test_polymatrix_ones_zeros() without return types