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"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-14 UTC."],[[["This page lists different versions of the `SessionPoolKeepAliveIntervalOption` for Google Cloud Spanner's C++ client library, with version 2.37.0-rc being the latest release candidate."],["The `SessionPoolKeepAliveIntervalOption` is used to set the interval for refreshing sessions, preventing their collection by the backend garbage collector."],["The garbage collector removes objects older than 60 minutes, thus this option should be set below that threshold."],["This option is an alias of `std::chrono::seconds`, and can be used with `google::cloud::Options`."]]],[]]
