
| render_layer optional | :: RenderLayer | |
| sprites | :: RotatedAnimation | Must have a   | 
Must have a   | ||
| sprites | :: RotatedAnimation | Must have a   | 
Must have a   | ||
| render_layer optional | :: RenderLayer | |

Default: "transport-belt-reader"

Must have a frame_count of 4, one for each direction.

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