def get_doc():
    """Get documentation of this resource

    :return: rst string
    :rtype: str
    """
    return """
    The ``livesynthesis`` model is maintained by the Alignak backend to get an easy overview of
    the monitored system state.

    For hosts and services, the live synthesis stores values computed from the real
    live state, each time an element state is updated:
    - a counter containing the number of host/service not monitored (no active nor
    passive checks enabled)
    - a counter containing the number of host/service in each state
    - a counter containing the number of host/service acknowledged
    - a counter containing the number of host/service in downtime
    - a counter containing the number of host/service flapping
    - the maximum business impact of the host/service in the state
    """
