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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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, specifically detailing its usage across various versions.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version for the \u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e is 2.37.0-rc, with historical versions available from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSessionPoolKeepAliveIntervalOption\u003c/code\u003e sets the interval for refreshing sessions to prevent them from being garbage collected by the backend, which typically occurs after 60 minutes of inactivity.\u003c/p\u003e\n"],["\u003cp\u003eThe interval for refreshing the sessions is set using an alias of \u003ccode\u003estd::chrono::seconds\u003c/code\u003e, and any duration shorter than 60 minutes, with some consideration for network latency, is recommended.\u003c/p\u003e\n"]]],[],null,[]]
