Function or

or<Parts extends readonly [unknown, unknown]>(...parts: Parts): ShapeOr<Parts>
Define a shape part that's a union of all its inputs.
Type Parameters
- Parts extends readonly [unknown, unknown]
Parameters
- ...parts: Parts
Returns ShapeOr<Parts>
Example
```
import {or, defineShape} from 'object-shape-tester';

const myShape = defineShape({
    a: or('', -1),
});

// `myShape.runtimeType` is `{a: string | number}`
```
- Defined in src/define-shape/shape-specifiers.ts:363