code: def test_var_accepts_comma():
      ns = {"var": var}
      v1 = eval("var('x y z')", ns)
      v2 = eval("var('x,y,z')", ns)
      v3 = eval("var('x,y z')", ns)
  
      assert v1 == v2
      assert v1 == v3
  
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 3 for calling a global function with example usage: test_var_accepts_comma() without return types