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BlueprintAPI > BlueprintAPI/Interchange > BlueprintAPI/Interchange/Node > BlueprintAPI/Interchange/Node/Material
Returns true if the attribute key is associated with an input (starts with "Inputs:").
Target is Interchange Shader Ports API
Inputs
| Type | Name | Description |
|---|---|---|
| exec | In | |
| string | Attribute Key |
Outputs
| Type | Name | Description |
|---|---|---|
| exec | Out | |
| boolean | Return Value |