# `GSInstance.manualInterpolation`

*Instance Property*

Disables automatic calculation of instanceInterpolations This allows manually setting instanceInterpolations.

## Declaration

```swift
var manualInterpolation: Bool { get set }
```

```objc
@property (nonatomic) BOOL manualInterpolation;
```

[See also `manualInterpolation` in the Python API](https://docu.glyphsapp.com/#GSInstance.manualInterpolation)

```python
pyobjc_instanceMethods.manualInterpolation() -> bool
pyobjc_instanceMethods.setManualInterpolation_(manualInterpolation: bool)
```