code: def test_multiple_arg_string():
      class Primitive(TransformPrimitive):
          def __init__(self, bool=True, int=0, float=None):
              self.bool = bool
              self.int = int
              self.float = float
  
      primitive = Primitive(bool=True, int=4, float=0.1)
      string = primitive.get_args_string()
      assert string == ", int=4, float=0.1"
  
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 6 for calling a global function with example usage: test_multiple_arg_string() without return types