> ## 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. # TurnRange Filter by the inclusive number of turns in a session. ## Example Usage ```typescript theme={null} import { TurnRange } from "@openrouter/sdk/models/operations"; let value: TurnRange = "10-49-turns"; // Open enum: unrecognized values are captured as Unrecognized ``` ## Values ```typescript theme={null} "1-turn" | "2-9-turns" | "10-49-turns" | "50-plus-turns" | Unrecognized ```