public static GcMode WithConcurrent(this GcMode mode, bool value) => mode.With(mode.Concurrent.Mutate(value));
 public static GcMode WithServer(this GcMode mode, bool value) => mode.With(mode.Server.Mutate(value));
 public static GcMode WithForce(this GcMode mode, bool value) => mode.With(mode.Force.Mutate(value));
 public static GcMode WithAllowVeryLargeObjects(this GcMode mode, bool value) => mode.With(mode.AllowVeryLargeObjects.Mutate(value));
 public static GcMode WithCpuGroups(this GcMode mode, bool value) => mode.With(mode.CpuGroups.Mutate(value));