> ## 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. # Via How the vault picks this link for the App, by the same selection egress uses. ## Example Usage ```go theme={null} import ( "github.com/OpenRouterTeam/go-sdk/models/components" ) value := components.ViaAppLink // Open enum: custom values can be created with a direct type cast custom := components.Via("custom_value") ``` ## Values | Name | Value | | - | - | | `ViaAppLink` | app\_link | | `ViaToken` | token | | `ViaAnyLink` | any\_link |