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 2025-04-02 UTC."],[[["This page provides documentation for the `SessionPoolKeepAliveIntervalOption` within the Google Cloud Spanner C++ library, with a focus on various versions."],["The latest version is `2.37.0-rc`, while `2.36.0` is the currently displayed version, and a history going as low as `2.11.0` is documented here."],["This option controls the interval at which sessions are refreshed to avoid garbage collection by the backend, with a recommended duration of less than 60 minutes."],["`SessionPoolKeepAliveIntervalOption` is an option for [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html)."],["The type alias for `SessionPoolKeepAliveIntervalOption` is `std::chrono::seconds`."]]],[]]
