code: def test_var_keywords():
      ns = {"var": var}
      eval("var('x y', real=True)", ns)
      assert ns["x"].is_real and ns["y"].is_real
  
file_path: sympy/sympy/core/tests/test_var.py
imports: from sympy.core.function import Function, FunctionClass
  from sympy.core.symbol import Symbol, var
  from sympy.testing.pytest import raises
label_desc: Use image node_id 4 for calling a global function with example usage: test_var_keywords() without return types