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This annotation marks the experimental API for encoding and decoding between binary data and printable ASCII character sequences.
Beware using the annotated API especially if you're developing a library, since your library might become binary incompatible with the future versions of the standard library.
Any usage of a declaration annotated with @ExperimentalEncodingApi
must be accepted either by
annotating that usage with the OptIn annotation, e.g. @OptIn(ExperimentalEncodingApi::class)
,
or by using the compiler argument -opt-in=kotlin.io.encoding.ExperimentalEncodingApi
.