Docs typo: mixer.Sound

[celeritydesign]

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ref: https://pyga.me/docs/ref/mixer.html

What should this say? :

"The Sound object represents actual sound sample data. Methods that change the state of the Sound object will the all instances of the Sound playback."

For context, I'm looking to make copies ( copy.copy() )of Sound objects from a cached dictionary, and am getting "cannot pickle Sound" errors. It would be great if the docs could address this.

Cheers!