def create_endpoint_config(self, name, model_name, initial_instance_count, instance_type,
                               accelerator_type=None, tags=None, kms_key=None):
        """Create an Amazon SageMaker endpoint configuration.

        The endpoint configuration identifies the Amazon SageMaker model (created using the
        ``CreateModel`` API) and the hardware configuration on which to deploy the model. Provide this
        endpoint configuration to the ``CreateEndpoint`` API, which then launches the hardware and deploys the model.

        Args:
            name (str): Name of the Amazon SageMaker endpoint configuration to create.
            model_name (str): Name of the Amazon SageMaker ``Model``.
            initial_instance_count (int): Minimum number of EC2 instances to launch. The actual number of
                active instances for an endpoint at any given time varies due to autoscaling.
            instance_type (str): Type of EC2 instance to launch, for example, 'ml.c4.xlarge'.
            accelerator_type (str): Type of Elastic Inference accelerator to attach to the instance. For example,
                'ml.eia1.medium'. For more information: https://docs.aws.amazon.com/sagemaker/latest/dg/ei.html
            tags(List[dict[str, str]]): Optional. The list of tags to add to the endpoint config. Example:
                    >>> tags = [{'Key': 'tagname', 'Value': 'tagvalue'}]
                    For more information about tags, see https://boto3.amazonaws.com/v1/documentation\
                    /api/latest/reference/services/sagemaker.html#SageMaker.Client.add_tags


        Returns:
            str: Name of the endpoint point configuration created.
        """
        LOGGER.info('Creating endpoint-config with name {}'.format(name))

        tags = tags or []

        request = {
            'EndpointConfigName': name,
            'ProductionVariants': [
                production_variant(model_name, instance_type, initial_instance_count,
                                   accelerator_type=accelerator_type)
            ],
        }

        if tags is not None:
            request['Tags'] = tags

        if kms_key is not None:
            request['KmsKeyId'] = kms_key

        self.sagemaker_client.create_endpoint_config(**request)
        return name