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Clarify async instrument callback identity #2538

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merged 9 commits into from
Jul 12, 2022
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fixup!
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legendecas committed Jun 21, 2022
commit 42d0725c5eab34d2581b9f9aa9aadeef8aaaea29
3 changes: 1 addition & 2 deletions specification/metrics/api.md
Original file line number Diff line number Diff line change
@@ -364,8 +364,7 @@ registration of the specific callback after its registration by some means.

Every currently registered Callback associated with a set of instruments MUST
be evaluated exactly once during collection prior to reading data for
that set. The evaluation is identified using a combination of the
callback itself, and the instruments set.
that set.

Callback functions MUST be documented as follows for the end user: