Interpolation can be the API to a statically checked template engine. This is not uncommon in Scala. See e.g. my reply when this blog was posted the other day:

Interpolation can be the API to a statically checked template engine. This is not uncommon in Scala. See e.g. my reply when this blog was posted the other day: https://news.ycombinator.com/item?id=45574339 https://news.ycombinator.com/item?id=45574339