feat: advisory parameters for metrics instruments #1801
+161
−40
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According to the metrics API, instrument creation should support advisory parameters.
The two current parameters are
attributes
andexplicit_bucket_boundaries
.attributes
(status: development), apply to every instrument.explicit_bucket_boundaries
only apply to histograms.The advisory parameters are accepted at instrument creation, validated that they apply to that instrument type, and then are cached on the instrument. New instances of their configured aggregations receive these parameters at
#initialize
.