code: def to_s3_uri(code_dict):
      
  
      try:
          uri = "s3://{bucket}/{key}".format(bucket=code_dict["S3Bucket"], key=code_dict["S3Key"])
          version = code_dict.get("S3ObjectVersion", None)
      except (TypeError, AttributeError):
          raise TypeError("Code location should be a dictionary")
  
      if version:
          uri += "?versionId=" + version
  
      return uri
docs: Constructs a S3 URI string from given code dictionary
  
      :param dict code_dict: Dictionary containing Lambda function Code S3 location of the form
                            {S3Bucket, S3Key, S3ObjectVersion}
      :return: S3 URI of form s3://bucket/key?versionId=version
      :rtype string