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# MTLFunctionStitchingInputNode

A call graph node that describes an input to the call graph.

```
class MTLFunctionStitchingInputNode
```

## Overview

An input node contains data from one of the stitched function’s parameters. The output data type of an input node has the same type as the matching parameter.

## Topics

### Initializing an input node

[`init(argumentIndex:)`](/documentation/Metal/MTLFunctionStitchingInputNode/init(argumentIndex:))

Creates a new input node.

### Configuring an input node

[`argumentIndex`](/documentation/Metal/MTLFunctionStitchingInputNode/argumentIndex)

The index in the command’s buffer argument table that declares which data to read for this input node.


---

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