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# init(_:shape:dataType:)

Initializes an tensor data with a metal buffer.

```
init(_ buffer: any MTLBuffer, shape: [NSNumber], dataType: MPSDataType)
```

## Parameters

`buffer`

MTLBuffer to be used within the MPSGraphTensorData

`shape`

shape of the output tensor

`dataType`

dataType of the placeholder tensor

## Return Value

A valid MPSGraphTensorData, or nil if allocation failure.

## Discussion

The device of the MTLBuffer will be used to get the MPSDevice for this MPSGraphTensorData.

---

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