def put_destination_policy(destinationName=None, accessPolicy=None):
    """
    Creates or updates an access policy associated with an existing destination. An access policy is an IAM policy document that is used to authorize claims to register a subscription filter against a given destination.
    See also: AWS API Documentation
    
    
    :example: response = client.put_destination_policy(
        destinationName='string',
        accessPolicy='string'
    )
    
    
    :type destinationName: string
    :param destinationName: [REQUIRED]
            A name for an existing destination.
            

    :type accessPolicy: string
    :param accessPolicy: [REQUIRED]
            An IAM policy document that authorizes cross-account users to deliver their log events to the associated destination.
            

    """
    pass
