How to add type safety to attributes

[nandin-borjigin]

The OpenTelemetry specification only requires attributes to be collection of KeyValue pairs. And KeyValues are merely a tuple of two arbitrary strings. This open a room for typos, causing incorrect aggregation and increase of attribute key cardinality. The cardinality of the attribute keys are very crucial when the amount of the telemetry signal is large.

Can we revise the specification so that statically typed languages can implement a more robust APIs for data models which has attributes (Metric, Span, Resource, etc) ?

[MrAlias]

Can you provide more context? Maybe an example or reference to what you are talking about?

Statically type language implementations of OpenTelemetry already use typing in their APIs. For example: https://pkg.go.dev/go.opentelemetry.io/otel/attribute