OptimizationStartEvent¶ gepa.core.callbacks.OptimizationStartEvent ¶ Bases: TypedDict Event for on_optimization_start callback. Attributes¶ seed_candidate: dict[str, str] instance-attribute ¶ trainset_size: int instance-attribute ¶ valset_size: int instance-attribute ¶ config: dict[str, Any] instance-attribute ¶