code: def test_DMF_properties():
      assert DMF([[]], ZZ).is_zero is True
      assert DMF([[]], ZZ).is_one is False
  
      assert DMF([[1]], ZZ).is_zero is False
      assert DMF([[1]], ZZ).is_one is True
  
      assert DMF(([[1]], [[2]]), ZZ).is_one is False
  
imports: from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.polys.domains import ZZ, QQ
  from sympy.polys.polyclasses import DMP, DMF, ANP
  from sympy.polys.polyerrors import CoercionFailed, ExactQuotientFailed, NotInvertible
  from sympy.polys.specialpolys import f_polys
  from sympy.testing.pytest import raises, warns_deprecated_sympy
label_desc: Use image node_id 12 for calling a global function with example usage: test_DMF_properties() without return types