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

    :return: rst string
    :rtype: str
    """
    return """
    The ``livesynthesisretention`` model is a cache used internally by the backend to store the
    last computed live synthesis information. If the live synthesis history is configured,
    a count of ``SCHEDULER_LIVESYNTHESIS_HISTORY`` live synthesis elements will be store in the
    live synthesis retention data model.
    """
