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� Z S )�OnHoverTooltipBasez?abstract base class for tooltips, with delayed on-hover display�� c sV t t| ��|� || _d| _| j�d| j�| _| j�d| j �| _
| j�d| j �| _ dS )aq Create a tooltip with a mouse hover delay.
anchor_widget: the widget next to which the tooltip will be shown
hover_delay: time to delay before showing the tooltip, in milliseconds
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e.g. after hovering over the anchor widget with the mouse for enough
time.
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