> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # ValueType Whether the operator expects a single value or an array ## Example Usage ```typescript theme={null} import { ValueType } from "@openrouter/sdk/models/operations"; let value: ValueType = "scalar"; // Open enum: unrecognized values are captured as Unrecognized ``` ## Values ```typescript theme={null} "scalar" | "array" | Unrecognized ```