Returns the specified SketchBlock object from the collection.
| Name | Type | Description |
| Index | Variant | Input Variant value that specifies the SketchBlock to return. This can be either a numeric value indicating the index of the item in the collection or it can be a string indicating the SketchBlock name. If an out of range index or a name of a non\-existent SketchBlock is provided, an error will occur. |