Redis Cache: Bugfix - Return type were internal making them public

[SiddharthChatrolaMs]

Redis Cache: Bugfix - Return type were internal making them public

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[markcowl]

@SiddharthChatrolaMs Please target this at the release branch 'release-0.9.5' if you want us to consider this fix for this release.

[markcowl]

@SiddharthChatrolaMs merged into release already