Whether message is treated as HTML string
Duration before close. It will not automatically close if set 0
Custom icon's class. It will be overridden by type
Description text
Offset from the top edge of the screen. Every Notification instance of the same moment should have the same offset
custom position
Whether to show a close button
Title
Notification type
Callback function when notification clicked
Callback function when closed
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Custom class name for Notification