code: def test_single_args_string():
      assert (
          IsIn([1, 2, 3]).get_args_string()
          == ", list_of_outputs=[1, 2, 3]"
      )
  
file_path: featuretools/featuretools/tests/primitive_tests/test_primitive_base.py
imports: from datetime import datetime
  import numpy
  import pandas
  from pytest import raises
  from featuretools.primitives import Haversine, IsIn, IsNull, Max, TimeSinceLast
  from featuretools.primitives.base import TransformPrimitive
label_desc: Use image node_id 7 for calling a global function with example usage: test_single_args_string() without return types