code: def test_has():
      a, b, c = symbols("a, b, c", cls=Dummy)
      f = Hyper_Function([2, -a], [b])
      assert f.has(a)
      assert f.has(Tuple(b))
      assert not f.has(c)
  
file_path: sympy/sympy/simplify/tests/test_function.py
imports: from sympy.core import symbols, Dummy, Tuple, S, Rational
  from sympy.functions import hyper
  from sympy.simplify.hyperexpand import Hyper_Function
label_desc: Use image node_id 3 for calling a global function with example usage: test_has() without return types