Flickable dragStarted and dragEnded signal docs are missing

/*!
    \qmlsignal QtQuick::Flickable::dragStarted()

    This signal is emitted when the view starts to be dragged due to user
    interaction.

    The corresponding handler is \c onDragStarted.
*/

/*!
    \qmlsignal QtQuick::Flickable::dragEnded()

    This signal is emitted when the user stops dragging the view.

    If the velocity of the drag is sufficient at the time the
    touch/mouse button is released then a flick will start.

    The corresponding handler is \c onDragEnded.
*/

/*!
    \qmltype Flickable
    \instantiates QQuickFlickable
    \inqmlmodule QtQuick
    \ingroup qtquick-input
    \ingroup qtquick-containers