Make metadata extraction functions pub #2644
Merged
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In #2640 I speculated that maybe external bindings would want to roll their own metadata-extraction functions. I'm not sure if it'll work for that case, but it seems like a good thing in general.
Making these functions
pubis a step in that direction. I could see external bindings code try their specializedextract_from_foofunction first, then fallback to callingextract_from_bytesto see if one of the standard cases works.