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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-26 UTC."],[[["This page provides documentation for the `SessionPoolKeepAliveIntervalOption` within the Google Cloud Spanner C++ library, with a wide array of versions available, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The `SessionPoolKeepAliveIntervalOption` is an option for `google::cloud::Options`, which manages the session refresh interval to prevent garbage collection by the backend."],["The type for this option is an alias of `std::chrono::seconds`, and values below 60 minutes are recommended to keep sessions alive."],["The page serves as a reference for this option for various versions, allowing developers to check how this function was defined at each version."]]],[]]