utils
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add generic implementation of bidirectional map
furthermore, this PR extracts out the generic interfaces we use in the generic set implementation so that we can reuse them in the bidirectional map.
What type of PR is this?
/kind feature
What this PR does / why we need it:
Generics provide a path to implementing generic implementations of arbitrary (but useful) data-structures. This PR creates a bidirectional map.
Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
Release note:
k8s/utils now supports a generic implementation of a bidirectional map.
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I don't actually think the apidiff compatibility check is valid here. Any concrete usage of the set library should continue to work, since the interface itself has not changed it's underlying signature.
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@k8s-triage-robot: Closed this PR.
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