Looker API Dashboard Run

From API, how do we achieve similar behavior as Dashboard run we do from UI? For e.g.

https://abc.looker.com/dashboards/2856?Date=1 months ago for 1 months&filter_config={"Date":[{"type":"past","values":[{"constant":"1","unit":"c_mo"},{}],"id":1}]}

I found one related post here, but did not quite get the part of “Then applying the dashboard filters to each element’s query and running them separately. Afterwards all the elements need to stick back together. ”

How can we run a dashboard alongwith filters via API?

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