anchor: Canvas:getMSAA
  Gets the number of multisample antialiasing (MSAA) samples used when drawing to the Canvas.
  
  This may be different than the number used as an argument to love.graphics.newCanvas if the system running LÖVE doesn't support that number.
  samples = Canvas:getMSAA()
  samples number The number of multisample antialiasing samples used by the canvas when drawing to it.