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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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, across multiple versions.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the documentation is for version 2.37.0-rc, with links to previous versions extending back to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e is used to set the interval for refreshing sessions to prevent them from being garbage collected by the backend, with a recommended duration of less than 60 minutes.\u003c/p\u003e\n"],["\u003cp\u003eThe type for the \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e is an alias of \u003ccode\u003estd::chrono::seconds\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
