> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-a46887cf.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# BaseInputsUnion1 - Go SDK

> BaseInputsUnion1 type definition

<Warning>
  The Go SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/go-sdk/issues).
</Warning>

## Supported Types

### BaseInputsMessage

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1BaseInputsMessage(components.BaseInputsMessage{/* values here */})
```

### OpenAIResponseInputMessageItem

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1OpenAIResponseInputMessageItem(components.OpenAIResponseInputMessageItem{/* values here */})
```

### OpenAIResponseFunctionToolCallOutput

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1OpenAIResponseFunctionToolCallOutput(components.OpenAIResponseFunctionToolCallOutput{/* values here */})
```

### OpenAIResponseFunctionToolCall

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1OpenAIResponseFunctionToolCall(components.OpenAIResponseFunctionToolCall{/* values here */})
```

### OutputItemImageGenerationCall

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1OutputItemImageGenerationCall(components.OutputItemImageGenerationCall{/* values here */})
```

### OutputMessage

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1OutputMessage(components.OutputMessage{/* values here */})
```

### OpenAIResponseCustomToolCall

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1OpenAIResponseCustomToolCall(components.OpenAIResponseCustomToolCall{/* values here */})
```

### OpenAIResponseCustomToolCallOutput

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1OpenAIResponseCustomToolCallOutput(components.OpenAIResponseCustomToolCallOutput{/* values here */})
```

### ApplyPatchCallItem

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1ApplyPatchCallItem(components.ApplyPatchCallItem{/* values here */})
```

### ApplyPatchCallOutputItem

```go lines theme={null}
baseInputsUnion1 := components.CreateBaseInputsUnion1ApplyPatchCallOutputItem(components.ApplyPatchCallOutputItem{/* values here */})
```

## Union Discrimination

Use the `Type` field to determine which variant is active, then access the corresponding field:

```go expandable lines theme={null}
switch baseInputsUnion1.Type {
	case components.BaseInputsUnion1TypeBaseInputsMessage:
		// baseInputsUnion1.BaseInputsMessage is populated
	case components.BaseInputsUnion1TypeOpenAIResponseInputMessageItem:
		// baseInputsUnion1.OpenAIResponseInputMessageItem is populated
	case components.BaseInputsUnion1TypeOpenAIResponseFunctionToolCallOutput:
		// baseInputsUnion1.OpenAIResponseFunctionToolCallOutput is populated
	case components.BaseInputsUnion1TypeOpenAIResponseFunctionToolCall:
		// baseInputsUnion1.OpenAIResponseFunctionToolCall is populated
	case components.BaseInputsUnion1TypeOutputItemImageGenerationCall:
		// baseInputsUnion1.OutputItemImageGenerationCall is populated
	case components.BaseInputsUnion1TypeOutputMessage:
		// baseInputsUnion1.OutputMessage is populated
	case components.BaseInputsUnion1TypeOpenAIResponseCustomToolCall:
		// baseInputsUnion1.OpenAIResponseCustomToolCall is populated
	case components.BaseInputsUnion1TypeOpenAIResponseCustomToolCallOutput:
		// baseInputsUnion1.OpenAIResponseCustomToolCallOutput is populated
	case components.BaseInputsUnion1TypeApplyPatchCallItem:
		// baseInputsUnion1.ApplyPatchCallItem is populated
	case components.BaseInputsUnion1TypeApplyPatchCallOutputItem:
		// baseInputsUnion1.ApplyPatchCallOutputItem is populated
}
```