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This formula...
=LABS.GENERATIVEAI("Without addressing me or naming your sources, give me a 35- to 40-word reason for March's increase in the US CPI.",0)
...gave me this result:

The increase in the US CPI in March was largely due to rising gasoline prices and higher costs for shelter, as well as increases in the prices of food, clothing, and transportation services.

Is there a way to point the function at internal data so that it could return something like?:

The increase in March sales was largely due to the increase in the sales of widgets in the North region, as well as increases in the West region for sales of widgets and gidgets.

Edit:

Instead of "Without addressing me or naming your sources" this appears to do the same thing: "Without a preamble". That's needed because without something like that we get something like this:

According to web search results, the US CPI increased in March due to a surge in gasoline prices tied to Russia’s invasion of Ukraine and sharp increases coming from the collision of strong demand and stubborn pandemic-related supply shortages.

In the future, we need to have a consistent and documented way to suppress phrases like "According to web search results."