new_contents: import pytest
  
  import helpers
  import meshio
  
  
  @pytest.mark.parametrize(
      "mesh",
      [
          helpers.tri_mesh,
          helpers.tri_mesh_2d,
          helpers.triangle6_mesh,
          helpers.quad_mesh,
          helpers.quad8_mesh,
          helpers.tri_quad_mesh,
          helpers.tet_mesh,
          helpers.tet10_mesh,
          helpers.hex_mesh,
          helpers.hex20_mesh,
      ],
  )
  def test(mesh):
      helpers.write_read(meshio._nastran.write, meshio._nastran.read, mesh, 1.0e-15)
      return
  
subject: add nastran test