angular 5 - how to use Angular Material tooltip

I'm following this link to implement a tool tip in angular 5.

https://material.angular.io/components/tooltip/api

But I am not understanding how practically implement this.

any body can add an example of a ts and html files of how to implements it ?

edit

Thanks for all quick responses.

i try to add this to my html:

<button mat-raised-button matTooltip="Info about the action" aria-label="Button that displays a tooltip">

</button>


and this in the ts:

import {MatTooltipModule} from '@angular/material';


but now i getting this error in the console:

Error: The "mat-" prefix cannot be used in ng-material v1 compatibility mode. It was used on an "button" element. Error: The "mat-" prefix cannot be used in ng-material v1 compatibility mode. It was used on an "button" element
​

any bode know why? thanks!

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