agm-direction provideRouteAlternatives not working.
<agm-map
[latitude]="lat" [longitude]="lng" [zoom]="zoom">
<agm-marker [latitude]="lat" [longitude]="lng">
<agm-direction
[origin]="origin"
[destination]="destination"
[waypoints]="waypoints"
[provideRouteAlternatives]="altRoutes">
here altRoutes is set to 'true' (boolean)