Channels:
  
  Command:
    ChannelOff channel

  Description:
    Turns off the channel "channel".

  Input:
    channel - A channel number between 1 and 4.

  Result:
    None.

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  Command:
    ChannelOn channel

  Description:
    Turns on the channel "channel".

  Input:
    channel - A channel number between 1 and 4.

  Result:
    None.
 
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  Command:
    state = GetChannel channel

  Description:
    Get the current state of the channel "channel".

  Input:
    channel - A channel number between 1 and 4.

  Result:
    state - This is a boolean where FALSE means off and TRUE means on.

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  Command:
    state = ToggleChannel channel

  Description:
    Toggles the state of the channel "channel".

  Input:
    channel - A channel number between 1 and 4.

  Result:
    state - This is a boolean where FALSE means off and TRUE means on.