18.1.1 Configuration Objects 
Configuration objects (returned by newconfig() have the
following methods:
- getqueuesize ()
 - 
Return the queue size.
 
- setqueuesize (size)
 - 
Set the queue size.
 
- getwidth ()
 - 
Get the sample width.
 
- setwidth (width)
 - 
Set the sample width.
 
- getchannels ()
 - 
Get the channel count.
 
- setchannels (nchannels)
 - 
Set the channel count.
 
- getsampfmt ()
 - 
Get the sample format.
 
- setsampfmt (sampfmt)
 - 
Set the sample format.
 
- getfloatmax ()
 - 
Get the maximum value for floating sample formats.
 
- setfloatmax (floatmax)
 - 
Set the maximum value for floating sample formats.
 
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