Const ExperimentalA semantic identifier, commonly referred to as a variant, provides a means
for referring to a value without including the value itself. This can
provide additional context for understanding the meaning behind a value.
For example, the variant red maybe be used for the value #c05543.
This attribute is experimental and is subject to breaking changes in minor releases of @opentelemetry/semantic-conventions.
A semantic identifier for an evaluated flag value.