text: import os
  import boto3
  from botocore import UNSIGNED
  from botocore.client import Config
  import pickle
  
  labels = ["setosa", "versicolor", "virginica"]
  
  
  class PythonPredictor:
      def __init__(self, config):
          if os.environ.get("AWS_ACCESS_KEY_ID"):
              s3 = boto3.client("s3")  # client will use your credentials if available
          else:
              s3 = boto3.client("s3", config=Config(signature_version=UNSIGNED))  # anonymous client
  
          s3.download_file(config["bucket"], config["key"], "/tmp/model.pkl")
          self.model = pickle.load(open("/tmp/model.pkl", "rb"))
  
      def predict(self, payload):
          measurements = [
              payload["sepal_length"],
              payload["sepal_width"],
              payload["petal_length"],
              payload["petal_width"],
          ]
  
          label_id = self.model.predict([measurements])[0]
          return labels[label_id]
  