Option for google::cloud::Options to set the interval at which we refresh sessions so they don't get collected by the backend GC.
The GC collects objects older than 60 minutes, so any duration below that (less some slack to allow the calls to be made to refresh the sessions) should suffice.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e within the Google Cloud Spanner C++ library, spanning multiple versions from 2.11.0 to the latest release candidate 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e is used to configure how frequently sessions are refreshed to prevent them from being garbage collected by the backend, which happens after 60 minutes of inactivity.\u003c/p\u003e\n"],["\u003cp\u003eThe alias for this option is \u003ccode\u003estd::chrono::seconds\u003c/code\u003e, indicating the interval is measured in seconds.\u003c/p\u003e\n"],["\u003cp\u003eThe structure for each version has a consistent format with a link that will take you to the given version's documentation.\u003c/p\u003e\n"]]],[],null,[]]
