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

    :return: rst string
    :rtype: str
    """
    return """
    The ``graphite`` model contains information to provide the monitored system performance
    data to Carbon/Graphite.

    The Alignak backend will use those information to connect to a Carbon daemon and send the
    timeseries data. If you are using a StatsD daemon as a front-end of the Carbon daemon
    create a relation with a StatsD data model instance. To make the Alignak backend create
    some Grafana panels for the metrics sent to Graphite create a relation with a Grafana
    data model instance.
    """
