code: def test_exp():
      a = exp(interval(-np.inf, 0))
      assert a.start == np.exp(-np.inf)
      assert a.end == np.exp(0)
      a = exp(interval(1, 2))
      assert a.start == np.exp(1)
      assert a.end == np.exp(2)
      a = exp(1)
      assert a.start == np.exp(1)
      assert a.end == np.exp(1)
  
imports: from sympy.external import import_module
  from sympy.plotting.intervalmath import Abs, acos, acosh, And, asin, asinh, atan, atanh, ceil, cos, cosh, exp, floor, imax, imin, interval, log, log10, Or, sin, sinh, sqrt, tan, tanh
label_desc: Use image node_id 2 for calling a global function with example usage: test_exp() without return types