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# Function frameOp

*   <a id="frameop"></a>
    
    ```typescript
    frameOp(data: WireFrameInput): IspoOp | null
    ```
    
    Types: [WireFrameInput](../types/core.Supporting_types.WireFrameInput.md), [IspoOp](../types/core.IspoOp.md)
    
    The frame's `op`, or `null` when `data` is not an ISPO frame.
    
    #### Parameters
    
    *   data: [WireFrameInput](../types/core.Supporting_types.WireFrameInput.md)
    
    #### Returns [IspoOp](../types/core.IspoOp.md) | null