> ## 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. # ImageGenerationProviderPreferencesOrder ## Supported Types ### ProviderName ```go theme={null} imageGenerationProviderPreferencesOrder := components.CreateImageGenerationProviderPreferencesOrderProviderName(components.ProviderName{/* values here */}) ``` ### ```go theme={null} imageGenerationProviderPreferencesOrder := components.CreateImageGenerationProviderPreferencesOrderStr(string{/* values here */}) ``` ## Union Discrimination Use the `Type` field to determine which variant is active, then access the corresponding field: ```go theme={null} switch imageGenerationProviderPreferencesOrder.Type { case components.ImageGenerationProviderPreferencesOrderTypeProviderName: // imageGenerationProviderPreferencesOrder.ProviderName is populated case components.ImageGenerationProviderPreferencesOrderTypeStr: // imageGenerationProviderPreferencesOrder.Str is populated } ```