code: def test_acosh():
      a = acosh(interval(3, 5))
      assert a.start == np.arccosh(3)
      assert a.end == np.arccosh(5)
  
      a = acosh(interval(0, 3))
      assert a.is_valid is None
      a = acosh(interval(-3, 0.5))
      assert a.is_valid is False
  
      a = acosh(0.5)
      assert a.is_valid is False
  
      a = acosh(2)
      assert a.start == np.arccosh(2)
      assert a.end == np.arccosh(2)
  
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 20 for calling a global function with example usage: test_acosh() without return types