code: def test_arccosh(self, xp, dtype):
      a = xp.array([1, 2, 3], dtype=dtype)
      return xp.arccosh(a)
  
file_path: cupy/tests/cupy_tests/math_tests/test_hyperbolic.py
imports: import unittest
  from cupy import testing
label_desc: Use image node_id 7 for calling the TestHyperbolic obj's underlying member method code with example usage: obj.test_arccosh(xp, dtype) and returns: xp