> ## 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. # ObservabilityDataRegionInput `eu` is accepted as an alias for `europe` and normalizes to `europe`. ## Example Usage ```python theme={null} from openrouter.components import ObservabilityDataRegionInput # Open enum: unrecognized values are captured as UnrecognizedStr value: ObservabilityDataRegionInput = "global" ``` ## Values This is an open enum. Unrecognized values will not fail type checks. * `"global"` * `"europe"` * `"us"` * `"eu"`