> ## Documentation Index
> Fetch the complete documentation index at: https://kumo.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# channels

#### `channels: <list[int]>` (Optional)

#### Description

A list of dimensions for layers in the graph transformer network model for AutoML to explore.

* `channels` must be an even number between `>= 2` and `<= 512`.

#### Supported Task Types

* All except Link Prediction

#### Default Values

| [run\_mode](/run-mode) | Default Value |
| :--------------------- | :------------ |
| FAST                   | `[64, 128]`   |
| NORMAL                 | `[64, 128]`   |
| BEST                   | `[64, 128]`   |