code: def test_simple(self):
      df = spark.createDataFrame(
          [("foo",) for x in range(20)], ["data"]
      ).withColumn(
          "inputs",
          struct("data"),
      )
  
      response_schema = (
          StructType()
          .add("status", StringType())
          .add("message", StringType())
      )
  
      client = (
          SimpleHTTPTransformer()
          .setInputCol("inputs")
          .setInputParser(JSONInputParser())
          .setOutputParser(
              JSONOutputParser().setDataType(response_schema)
          )
          .setOutputCol("results")
          .setUrl("https://dog.ceo/api/breeds/image/random")
      )
  
      responses = client.transform(df)
      responses.select("results").show(truncate=False)
  
file_path: SynapseML/cognitive/src/test/python/synapsemltest/services/test_simple.py
imports: import unittest
  from synapse.ml.io.http import *
  from synapsemltest.spark import *
  from pyspark.sql.functions import struct
  from pyspark.sql.types import *
label_desc: Use image node_id 1 for calling the SimpleHTTPTransformerSmokeTest obj's underlying member method code with example usage: obj.test_simple() without return types