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# bnns_graph_shape_t

The specification of the shape of an argument.

```
struct bnns_graph_shape_t
```

## Overview

Use a [`bnns_graph_shape_t`](/documentation/Accelerate/bnns_graph_shape_t) structure to pass the rank and dimensions of tensors to the [`BNNSGraphContextSetDynamicShapes(_:_:_:_:)`](/documentation/Accelerate/BNNSGraphContextSetDynamicShapes(_:_:_:_:)) function.

## Topics

### Initializing a graph shape

[`init()`](/documentation/Accelerate/bnns_graph_shape_t/init())

Creates an empty shape structure.

[`init(rank:shape:)`](/documentation/Accelerate/bnns_graph_shape_t/init(rank:shape:))

Creates a shape structure with the specified rank and dimensions.

### Specifying a shape’s properties

[`rank`](/documentation/Accelerate/bnns_graph_shape_t/rank)

The rank of the shape.

[`shape`](/documentation/Accelerate/bnns_graph_shape_t/shape)

An array of unsigned-integer elements that specify the size of the shape.


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