CreateModelPackage API - InferenceSpecification "Environment" property not accepted

[ZenPylon]

I'm currently trying to use the SageMaker API's create_model_package() method in a manner similar to the example shown here. However, I receive the following error when including Environment parameter.

ParamValidationError: Parameter validation failed: Unknown parameter in InferenceSpecification.Containers[0]: "Environment", must be one of: ContainerHostname, Image, ImageDigest, ModelDataUrl, ProductId

Code sample:

import boto3

sm_client = boto3.client('sagemaker')

model_package_group_name = 'my-group-name'
submit_dir = 's3://our_bucket/path'
entry_point_script = 'our_inference_code.py'
model_url='s3://our_bucket/model/path'

modelpackage_inference_specification =  {
    "InferenceSpecification": {
      "Containers": [
         {
            "Image": "'246618743249.dkr.ecr.us-west-2.amazonaws.com/sagemaker-scikit-learn:0.23-1-cpu-py3'",
            "Environment": {
                "SAGEMAKER_SUBMIT_DIRECTORY": submit_dir,
                "SAGEMAKER_PROGRAM": entry_point_script
            }
         }
      ],
      "SupportedContentTypes": [ "text/csv" ],
      "SupportedResponseMIMETypes": [ "text/csv" ],
   }
 }


modelpackage_inference_specification["InferenceSpecification"]["Containers"][0]["ModelDataUrl"]=model_url

create_model_package_input_dict = {
    "ModelPackageGroupName" : model_package_group_name,
    "ModelPackageDescription" : "Model to detect 3 different types of irises (Setosa, Versicolour, and Virginica)",
    "ModelApprovalStatus" : "PendingManualApproval"
}
create_model_package_input_dict.update(modelpackage_inference_specification)

create_mode_package_response = sm_client.create_model_package(**create_model_package_input_dict)
model_package_arn = create_mode_package_response["ModelPackageArn"]
print('ModelPackage Version ARN : {}'.format(model_package_arn))

I would expect this to be valid code, as the docs indicate that the Environment property is listed as a property in the API spec here. I'd appreciate any suggestions. Thanks!

[saumitravikram]

Please ensure you are using the latest version of aws python sdk installed for new fields Environment to be available.