code: def eval_cse(e, sub_dict):
      tmp_dict = {}
      for tmp_name, tmp_expr in e[0]:
          e2 = tmp_expr.subs(sub_dict)
          e3 = e2.subs(tmp_dict)
          tmp_dict[tmp_name] = e3
      return [e.subs(sub_dict).subs(tmp_dict) for e in e[1]]
  
imports: from sympy.external import import_module
  from sympy.testing.pytest import raises
  import ctypes
  import sympy
  from sympy.abc import a, b, n
label_desc: Use image node_id 14 for calling a global function with example usage: eval_cse(e, sub_dict) and returns: unknown