Postman & Looker

Hello All

Would anyone be able to share (in a really simplistic manner) the secret of setting up Postman and Looker?

I get the error below:

"message": "Requires authentication.",
"documentation_url": "http://docs.looker.com/"

Looking at the documentation, i think I need to generate a Bearer token but I am not sure what syntax to use in Postman

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