Does the documentation for Decoder.KnownFields make grammatical sense?

[ardnew]

KnownFields ensures that the keys in decoded mappings to exist as fields in the struct being decoded into.

I can't tell if there is a typo somewhere, missing punctuation, or some sort of pun or word puzzle I'm too dense to detect — but, as documentation, this reads as broken English.

There is an open PR #898 to address this. And since I was looking up the documentation to understand what the method does, I can't make much sense of that one either.