Create a QoS Policy.

    :param request: request context
    :param name: name of the policy
    :param description: description of policy
    :param shared: boolean (true or false)
    :return: QoSPolicy object

def policy_create(request, **kwargs):
    """Create a QoS Policy.

    :param request: request context
    :param name: name of the policy
    :param description: description of policy
    :param shared: boolean (true or false)
    :return: QoSPolicy object
    """
    body = {'policy': kwargs}
    policy = neutronclient(request).create_qos_policy(body=body).get('policy')
    return QoSPolicy(policy)