TPS62873EVM-143: Small capacitors near the inductor

Part Number: TPS62873EVM-143

Tool/software:

Hi support team,

There are 0.47μF capacitors C20 and C21 placed near inductor L1.
www.ti.com/.../slvuc13.pdf
These are not mentioned in the TPS6287x datasheet, but what effect do they have?
Is it to suppress high frequency noise?

Regards,
Dice-K