optional chainPollTemplate: object;

optional explanation_field_name: string;

explanation;

optional metric_description: null | string;

optional metric_few_shot_examples: object[];

optional metric_system_prompt: null | string;

template: string;

optional value_field_name: string;

rating;

optional cotEnabled: boolean;

optional instructions: string;

optional modelName: string;

optional numJudges: number;

optional outputType: OutputType;

optional scoreableNodeTypes: StepType[];

scorerId: string;

optional userPrompt: string;