How to load OSI Tile Layer as basemap in Arcgis Javascript API 4.18?

[MayoTestUser]

Hi,I am new to ArcGIS Javascipt API.I want to load OSI Tile Layer as basemap from arcgis portal account.

Kindly suggest any ideas to load the basemap.I am using ArcGIS Javascipt API 4.18 version.

Thanks