LoopBack 3 is in Maintenance LTS mode, only critical bugs and critical
security fixes will be provided. The support ends in December 2020. We
urge all LoopBack 3 users to migrate their applications to LoopBack 4
as soon as possible. Refer to our Migration Guide for more information
on how to upgrade: https://loopback.io/doc/en/lb4/migration-overview.html
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Description/Steps to reproduce
Expected result
The warning should be in stderr