pub const SESSION_PARAMS: &[&str];Expand description
Param keys that configure the session-tier services — one value per
session, shared by every execution under it. Executions that declare
different values for any of these cannot share a session; a multi-
execution harness must group by them and set up one session per group
(see session_param_signature). metrics_cadence is the load-bearing
case: it fixes the cadence the optimizer settle detector samples, so
workloads wanting a sub-second cadence must run in their own session.