One of the best inventions in Kotlin:

@Deprecated(“'fetch' can be used only once on an Insertion expression.", ReplaceWith(""), DeprecationLevel.ERROR)

Create intentionally bogus overloads and mark them with

DeprecationLevel.ERROR

with an appropriate message to guide users of your library. Use

@JvmName("fetchBogus”)

or similar to resolve JVM name conflicts.