plgcompression: Get the current device-compression setting

`plgcompression`: Get the current device-compression setting
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#### `plgcompression`: Get the current device-compression setting

`plgcompression (` | compression`)`;

Get the current device-compression setting. This parameter is only used for drivers that provide compression.

`compression` (``PLINT_NC_SCALAR``, output)

  Returned value of the compression setting for the current device.

Redacted form: `plgcompression(compression)`

This function is used in example 31.

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