Setting boundaries when creating an Histogram

[kafkaphoenix]

Is your feature request related to a problem?

• We are offering in our library a meter previously configured so the users can create the metrics they wish, but we face the problem that the user is not going to be able to set boundaries for their histogram metrics as the only way to define boundaries is in the moment of the meter provider creation as we can see in this example

Describe the solution you'd like

• An option to set boundaries when creating an histogram metrics as it is supported in the go sdk

Describe alternatives you've considered

• The only workaround we see right now is pre defining a bunch of views

[aabmass]

Thanks for opening this. This has recently been added to the spec as the "Advisory API": https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/api.md#instrument-advisory-parameter-explicitbucketboundaries

So we just need someone to implement this :)

[lsfischer]

@aabmass
I've opened a feature request about this topic here as well, if there's consensus around it I can try proposing an implementation 😁

[emdneto]

open-telemetry/opentelemetry-python-contrib#3011 will benefit from this

[emdneto]

Closing by #4361