def update_pipeline_notifications(Id=None, Notifications=None):
    """
    With the UpdatePipelineNotifications operation, you can update Amazon Simple Notification Service (Amazon SNS) notifications for a pipeline.
    When you update notifications for a pipeline, Elastic Transcoder returns the values that you specified in the request.
    See also: AWS API Documentation
    
    
    :example: response = client.update_pipeline_notifications(
        Id='string',
        Notifications={
            'Progressing': 'string',
            'Completed': 'string',
            'Warning': 'string',
            'Error': 'string'
        }
    )
    
    
    :type Id: string
    :param Id: [REQUIRED]
            The identifier of the pipeline for which you want to change notification settings.
            

    :type Notifications: dict
    :param Notifications: [REQUIRED]
            The topic ARN for the Amazon Simple Notification Service (Amazon SNS) topic that you want to notify to report job status.
            Warning
            To receive notifications, you must also subscribe to the new topic in the Amazon SNS console.
            Progressing : The topic ARN for the Amazon Simple Notification Service (Amazon SNS) topic that you want to notify when Elastic Transcoder has started to process jobs that are added to this pipeline. This is the ARN that Amazon SNS returned when you created the topic.
            Completed : The topic ARN for the Amazon SNS topic that you want to notify when Elastic Transcoder has finished processing a job. This is the ARN that Amazon SNS returned when you created the topic.
            Warning : The topic ARN for the Amazon SNS topic that you want to notify when Elastic Transcoder encounters a warning condition. This is the ARN that Amazon SNS returned when you created the topic.
            Error : The topic ARN for the Amazon SNS topic that you want to notify when Elastic Transcoder encounters an error condition. This is the ARN that Amazon SNS returned when you created the topic.
            Progressing (string) --The Amazon Simple Notification Service (Amazon SNS) topic that you want to notify when Elastic Transcoder has started to process the job.
            Completed (string) --The Amazon SNS topic that you want to notify when Elastic Transcoder has finished processing the job.
            Warning (string) --The Amazon SNS topic that you want to notify when Elastic Transcoder encounters a warning condition.
            Error (string) --The Amazon SNS topic that you want to notify when Elastic Transcoder encounters an error condition.
            

    :rtype: dict
    :return: {
        'Pipeline': {
            'Id': 'string',
            'Arn': 'string',
            'Name': 'string',
            'Status': 'string',
            'InputBucket': 'string',
            'OutputBucket': 'string',
            'Role': 'string',
            'AwsKmsKeyArn': 'string',
            'Notifications': {
                'Progressing': 'string',
                'Completed': 'string',
                'Warning': 'string',
                'Error': 'string'
            },
            'ContentConfig': {
                'Bucket': 'string',
                'StorageClass': 'string',
                'Permissions': [
                    {
                        'GranteeType': 'string',
                        'Grantee': 'string',
                        'Access': [
                            'string',
                        ]
                    },
                ]
            },
            'ThumbnailConfig': {
                'Bucket': 'string',
                'StorageClass': 'string',
                'Permissions': [
                    {
                        'GranteeType': 'string',
                        'Grantee': 'string',
                        'Access': [
                            'string',
                        ]
                    },
                ]
            }
        }
    }
    
    
    :returns: 
    Active : The pipeline is processing jobs.
    Paused : The pipeline is not currently processing jobs.
    
    """
    pass
