code: def eg_cs():
      E = SimpleNamespace()
      E.name = "test"
      E.axes = ("i", "j", "k")
      E.coord_dtype = np.float32
      E.cs = CoordinateSystem(E.axes, E.name, E.coord_dtype)
      return E
  
imports: from types import SimpleNamespace
  import numpy
  import pytest
  from ..coordinate_system import CoordinateSystem, CoordinateSystemError, CoordSysMaker, CoordSysMakerError, is_coordsys, is_coordsys_maker, product, safe_dtype
label_desc: Use image node_id 1 for calling a global function with example usage: eg_cs() and returns: E