Carlos Alberto Cortez

Ping @open-telemetry/configuration-maintainers (otherwise we are good to go)

Merging this one. cc @MrAlias @ocelotl

@jmacd will #3924 will solve your concern? Can we go ahead and merge this PR or should we wait a little longer?

> Side note: Actually some logging libraries allow duplicate keys Still good to merge this PR, given this detail, for the March's release?

@pellared Oops, lint is failing.

Oops, sorry for missing this one. Let's poke the @open-telemetry/specs-metrics-approvers to confirm this is fine.

Sorry for the delay @dashpole - I think we are mostly ready to merge this one. Can we include the `Add option to disable target info metric.` bit in the...

Should this be included in March's release?

Aha! yes, I had forgotten about the proto not releasing yet the related update. WDYT @jsuereth ?

Merging as proto 1.2.0 with `metric.metadata` has been released.